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1. Identify the one that has a mistake by circling the corresponding letter a, b, c, d.
71. If we will reduce->reduce the speed of population growth, there will be less pressure on the earth.
72. Unless->IF we leave a bowl of water under the sun, it will evaporate.
73. If we continue to use fuels at the current rate, we would->will soon have to face a fuel crisis.
A b c d
89. If tomorrow the weather will be->is bad, the match will be postponed.
a. b. c. d.
90. If you will see->see Mike today, please ask him to phone me.
Exercise 2: Identify the one that has a mistake by circling the corresponding letter a, b, c, d.
74. If I am=>were 10 centimeters taller, I would play basketball. A b c d
75. If the doctors could find=>have found in the remedy, a lot of people would be saved. A b c d
76. If she bought that house now, she ran=>would run out of money. A b c d
77. What you would=>would you do if you could speak French well? A b c d
78. If I had known he is=>was not at home, I wouldn’t have gone all the way to his house. A b c d
79. If I had known that the road were=>was flooded, I would never have taken that way. A b c d
80. If I were you, I will=>would go to the dentist’s and have the tooth checked. a b c d
81. If you hadn’t left the car unlocked, it wouldn’t have be=>been stolen. a. b. c. d
82. What would happen because=>if I pressed that red button? a. b. c. d
83. If the weather is=>were fine today, we would go to the beach. a. b c. d.
84. If you will=> 0 study harder, you will surely pass the coming exams with good results. a. b. c. d
85. If the weather weren’t too bad, we would to=> 0 go swimming. a. b. c. d
86. If he weren’t too old, he would apply to=>for the job as a war reporter. a. b c. d
87.If drivers obeyed the speed limit, fewer accidents occur=>would occur. a. b. c. d
88. If I would have=>had studied Russian at school, I would have understood him easily. a. b. c. d
1. We don’t have enough money, so we can’t buy that house.
A. If we had enough money, we could buy that house. B. We could buy that house if we have enough money.
C. If we had had enough money, we could buy that house. D. We could have bought that house if we had had enough money.
2.Water these plant or they will die
A.Unless you water these plants ,they will die B.Unless you watered these plants ,they will die
C. Unless you water these plants ,they won’t die D. If you water these plants ,they will die
3. Hurry up or we’ll be late for the correct
A. If we don’t hurry , we won’t be late for the concert B.If we didn’t hurry , we will be late for the concert
C. If we don’t hurry, we will be late for the concert D.Unless we don’t hurry, we will be late for the concert
4..I can’t do this test because it is very difficult
A.If this test were difficult,I could do it B. If this test weren’t difficult ,I could do it
C.If this test weren’t difficult,I couldn’t do it D.Unless this test were difficult, I couldn’t do it
5. Study harder or you won’t pass the exam.
A. Only if you study harder, you will fail the exam. B. Unless you study harder, you will pass the exam.
C. If you don’t study harder, you will fail the exam.D. If you don’t pass the exam, you will have to study harder.
6. Take action soon or the pollution will get much worse.
A. If you don’t take action soon, the pollution will get much worse.
B. Unless you don’t take action soon, the pollution will get much worse.
C. The pollution will get much worse if you didn’t take action soon.
D. Only if you take action soon, the pollution will get much worse.
7. The fire will go out if we don’t put more wood on.
A. If we don’t put more wood on, the fire won’t go out. B. Unless we put more wood on, the fire will go out.
C. The fire will go out, so we don’t put more wood on. D. Unless we put more wood on, the fire won’t go out.
8. They spent a lot of money on food and clothes.
A. A lot of money was spent on food and clothes. B. A lot of money were spent on food and clothes.
C. A lot of money on food and clothes were spent. D. A lot of money on food and clothes was spent.
9. People have used the Internet all over the world.
A. The Internet has used all over the world. B. The Internet was used all over the world.
C. The Internet has been used all over the world. D. The Internet has been using all over the world.
10. Our house is going to be rebuilt by a local firm.
A. We are going to rebuild our house. B. We are going to have our house to rebuild.
C. A local firm are going to rebuild our house. D. A local firm is going to rebuild our house.
1. We don’t have enough money, so we can’t buy that house.
A. If we had enough money, we could buy that house. B. We could buy that house if we have enough money.
C. If we had had enough money, we could buy that house. D. We could have bought that house if we had had enough money.
2.Water these plant or they will die
A.Unless you water these plants ,they will die B.Unless you watered these plants ,they will die
C. Unless you water these plants ,they won’t die D. If you water these plants ,they will die
3. Hurry up or we’ll be late for the correct
A. If we don’t hurry , we won’t be late for the concert B.If we didn’t hurry , we will be late for the concert
C. If we don’t hurry, we will be late for the concert D.Unless we don’t hurry, we will be late for the concert
4..I can’t do this test because it is very difficult
A.If this test were difficult,I could do it B. If this test weren’t difficult ,I could do it
C.If this test weren’t difficult,I couldn’t do it D.Unless this test were difficult, I couldn’t do it
5. Study harder or you won’t pass the exam.
A. Only if you study harder, you will fail the exam. B. Unless you study harder, you will pass the exam.
C. If you don’t study harder, you will fail the exam.D. If you don’t pass the exam, you will have to study harder.
6. Take action soon or the pollution will get much worse.
A. If you don’t take action soon, the pollution will get much worse.
B. Unless you don’t take action soon, the pollution will get much worse.
C. The pollution will get much worse if you didn’t take action soon.
D. Only if you take action soon, the pollution will get much worse.
7. The fire will go out if we don’t put more wood on.
A. If we don’t put more wood on, the fire won’t go out. B. Unless we put more wood on, the fire will go out.
C. The fire will go out, so we don’t put more wood on. D. Unless we put more wood on, the fire won’t go out.
8. They spent a lot of money on food and clothes.
A. A lot of money was spent on food and clothes. B. A lot of money were spent on food and clothes.
C. A lot of money on food and clothes were spent. D. A lot of money on food and clothes was spent.
9. People have used the Internet all over the world.
A. The Internet has used all over the world. B. The Internet was used all over the world.
C. The Internet has been used all over the world. D. The Internet has been using all over the world.
10. Our house is going to be rebuilt by a local firm.
A. We are going to rebuild our house. B. We are going to have our house to rebuild.
C. A local firm are going to rebuild our house. D. A local firm is going to rebuild our house.
1. If people solve the problem of smoke from vehicles and factories, the air _____ pure and fresh.
A. is B. was C. will be D. would be
2. If you post false information on the Internet, you _____fined.
A. gets B. got C. would get D. will get
3. I believe that if all the people _____ the government’s instructions, we ____COVID-19 from spreading.
A. don’t follow/ will prevent
B. followed/ will prevent
C. follow/ would prevent
D. follow/ will prevent
4. Do you think there would be less conflict in the world if all people _____ the same language?
A. spoke B. speak C. had spoken D. will speak
5. If our schools are still closed because of the pandemic, we _____to study online.
A. wouldn’t B. would try C. tried D. will try
6. If I ____you, I ____many subjects online instead of playing video games.
A. was/ will study B. am/ will study C. were/ would study D. am/ would study
7. If people need more paper, more trees _____.
A. will cut down B. cut down C. will be cut down D. are cutting down
8. My English is not good. If I ___ English well, I ___ able to get a good job in a foreign company.
A. speak/ can be B. spoke / were C. speak/ were D. spoke/ would be
9. If everybody _____to the fight against COVID-19, we will win soon.
A. contribute B. contributes C. are contributing D. is contributed
10. If people protect the forest, a lot of trees _____.
A. will be preserved B. will preserve C. preserve D. would preserve
11. If you were me, what _____?
A. you would do B. will you do C. do you do D. would you do
12. People don’t trust him because he tells lies.
A. If he tells lies, people won’t trust him.
B. If he didn’t tell lies, people would trust him.
C. If he doesn’t tell lies, people will trust him.
D. If he told lies, people wouldn’t trust him.
13. The government limits travel and close contact among people, so we can prevent COVID-19 from spreading.
A. If the government didn’t limit travel and close contact among people, we couldn’t prevent COVID-19 from spreading.
B. If the government doesn’t limit travel and close contact among people, we can prevent COVID-19 from spreading.
C.If the government doesn’t limit travel and close contact among people, we could prevent COVID-19 from spreading.
D. If the government limited travel and close contact among people, we couldn’t prevent COVID-19 from spreading.
14. Wear a face mask when you are with many people, or you will be at risk.
A. If you wear a face mask when you are with many people, you will be at risk.
B. If you don’t wear a face mask when you are with many people, you will be at risk.
C. If you didn’t wear a face mask when you are with many people, you would be at risk.
D. If you don’t wear a face mask when you are with many people, you would be at risk.
18. We/ should/ maintain/ personal space/ avoid/ crowds/ if/ we/ want/ be/ safe/ now.
A. We should be maintained personal space and avoid crowds if we want to be safe now.
B. We should maintain personal space and avoid crowds if we want to be safe now.
C. We should maintain personal space and avoid crowds if we wanted to be safe now.
D. We should maintain personal space to avoid crowds if we want be safe now.
19. Her English/ not/ be/ rusty/ she/ used/ more often.
A. Her English wouldn’t be rusty if she uses it more often.
B. Her English wouldn’t be rusty if she has used it more often.
C. Her English wouldn’t be rusty if she is using it more often.
D. Her English wouldn’t be rusty if she used it more often.
20. If people/ solve/ problem/ smoke from vehicles, the air/ be pure and fresh.
A. If people solved the problem of smoke from vehicles, the air is pure and fresh.
B. If people solve the problem of smoke from vehicles, the air was pure and fresh.
C. If people solve the problem of smoke from vehicles, the air will be pure and fresh.
D. If people solve the problem of smoke from vehicles, the air would be pure and fresh.
1. we do not visit the museum because we have no time
A. If we have time, we will visit the museum B. if we had time, we would visit the museum
C. if we had time, we would have visited the museum D. if we had time, we will have visited the museum
2. ..........i have time, I will go with you
a. if B. unless C. so D. so that
3. If i .........who took your umberella, I would tell you
A. know B. knew C . known D. had know
4. If the automobile had not been in invented years ago,.......for basic transporttation now
a. what we would use b,what would we use c, what we will have used d, what we will be using
5, if the police had not saved me, i ..........at that time
a. will die b. would die c, will have died d, would have died
6. if i had time, i........and help you
a. will come b, would come c, will have come d, would have come
7, if I ......the truth, i would tell you
a, will know b, know c, hvae known d, knew
8, I'll return Bob' pen to him the next time if I .....him
a, will see b, see c, will have see d, have seen
9. I' d have told you if I .......the book
a, would have been b, should have seen c, had seen d,saw
10, If I..............more time , I would not have said such nonsense
a, am b, have been c, will be d,had been
will => bỏ will
would => will
found => find
ran => could run
could => can
will => would
is => will be
unless => if
not => don't
will see => see
Khoang truoc cau tra loi dung:
1. Don't.....We have to keep our schoolyard tidy and clean
A. litter B. put trash C. waste D. reduce garbage
2. We are all slowly destroying the earth by ... our environment
A. setting B. polluting C. minimizing D. confining
3. The earth's natural.....will run out
A. sources B. forces C. resources D. courses
4. There is a lot of eshaust fume in the air, so there is....
A. atmosphere dirt B. air pollution C. air traffic D. atmosphere dust
5. This river is polluted: a lot of fish died and floated on the.....
A. water line B. water face C. water front D. water surface
6. It's dangerous to use....to cash fish. People many die from electric shock waves
A. electricity B. fish hooks C. fish net D. fish rods
7. The loca authority should....the fish catching by electricity
A. allow B. permit C.prohibit D. give up
8. We can't swom in the river. There is trash...on the water surface
A. swimming B. floating C. diving D. bathing
9. The news that he died of AIDS was a great....
A. humour B. talk C shock D. pain
10. It rained....for three days
A. continue B. continues C. continuing D. continuously
11. ......if we take a map
A. We will get lost C. We won't get lost
B. We would get lost D. WE wouldn't get lost
12. We won't take a break....we finish our work
A. after B. until C. when D. as
13. Bob does not go to work today. He...ill
A. may be B. maybe C. ought to be D. will be
14. Why were you so....when I saw you yesterday?
A. friendless B. unfriendly C. friendly D. friendship
15. I'll look for another job....my salary is increased
A. if B.when C. as D. unless
16. We.....more shade and fresh air if we plant more trees along the streets
A. had B. will have C. have D. would have
17. We can't do the job...Jack helps us
A. unless B. if C. when D as
18. If you stand on this old table, it.....
A. collapse B. may collapse C. would collapse D. collapsed
19. If it....fine tomorrow we'll go for a walk
A. be B. is C. was D. would be
20. You are speaking very quietly. I can....hear you
A. hard B. hardy C. hardly D. hardness