Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

: I. Choose the best answer:
1. If the factory (continues/ to continue/ continued) dumping poison into the lake, all the fish and other aquatic animals will die.
2. Water (pollution/ pollute/ polluted) in the lake has made the fish die.
3. Mi and Nick like (comes/ come/ coming) back Mi’s home village on holiday.
4. If the factory continues dumping poison into the lake, all the fish and other aquatic animals (will die/ to die/ dead)
6. If we (will use/ would use/ use) water carefully, more people will have fresh water.
7. If the factory continues dumping poison (into/ to/ about) the lake, all the fish and other aquatic animals will die
8. Farmers in our area usually use (pesticides/ herbicides/ waste/ sewage) to kill insects
9. If we (polluted/ pollute/ pollution/ pollutant) the air, more people will have breathing problems
10. If you can experience noise pollution for a long time, you can have headache, high blood pressure and (hearing loss/ contaminant/cough/ radiation)
11. Because the water is polluted, (aquatic/ electric/ chemical/ fresh) plants may also die
12. (Noise/ Headache/ Earplug/ Symptom) is any sound that is loud and constant.
13. Do you know what (polluted/ pollute/ pollution/ pollutant) cause air pollution
14. (Poison/ Poisonous/ Poisoning/ Poisoned) chemical waste is dumped into the river by many factories
15. The (dead/ die/ death/ died) fish are floating in the water.
16. We plant trees, (due to/ because/ because of/ so) we can have fresh air.
17. When the loudness of sounds is more than (20 dBs/ 30dBs/ 50 dBs/ 70dBs), noise pollution happens ( cái này mình cũng không nhớ rõ , ở trong SGK có á , bạn giở ra xem nhé )
18. Too much carbon dioxide (CO2) in the atmosphere (causes/ lead/ result/ make) to global warming
19. Waste from households will gradually (contamination/contaminate/contaminant/ contaminated) the lake.
20. When (visual/ thermal/ light/ radioactive) pollution happens, the water temperature in streams, rivers or oceans changes.
21.We can’t see stars at night (because of/ because/ since/ due) the light pollution.
22.If you (was / were/ are/ could be) in my position, you would understand me.
23.When (visual/ thermal/ light/ radioactive) pollution happens, the water temperature in streams, rivers or oceans changes.
24.Many seabirds were (die/ death/ dead/ died) because of the oil spill.
25.(Aquatic/ Electric/ Chemical/ Fresh) plants may also die because of the polluted water
26. Many animals eat the (litter/ energy/ aqua/ temperature) and become sick.
27. The acid rain has caused (damage/ advantage/ pollutant/ environment) to the trees in this area.
28.If I (have/ has/ had/ will have) one million US dollars , I would build more parks in our city.
#Yumi

I.Choose the best answer.(A,B,C or D):
1.I like............back my home village on holiday.
A. comes B. come C.came D.coming
2.Iff the factory.... dumping poison into the lake , all the fish and other aquatic animals will die.
A.continues B.to continue C.continued D.will continue
3. Water.......in the lake has made the fish die.
A.pollution B.pollute C.polluted D.plluting
4.Mi and Nick like .......... back Mi's home village on holiday.
A.comes B.come C.came D. coming
5.If the factory continues dumping poison into the lake, all the fish and other aquatic animals........... .
A.die B. to die C.dead D.will die
6.Water pollution is the..... in the lake has made the fish die.
A.comtaminating B.contaminate C.contaminated D.contamination
7.If we .......... water carefully,more people will have fresh water.
A.will use B.would use C.using D.use
8.If the factory continues dumping poison......... the lake, all the fish and oother aquatic animals will die.
A.into B.to C.about D.in
II.Put the verbs in brackets into the correct form.(Câu điều kiện loại I)
1.If we(recycle)....recycle.... more, we will help the Earth.
2.Factories(not dump)...won't dump...waste into rivers if the government fine them heavily.
3.If people travel to work by bus, there(be)...will be... fewer car fumes.
4.We(save)...will save...thousands of trees if we don't waste paper.
5.If we use water carefully, more people(have)...will have...fresh water.
6.If the factory(continue)....continues...dumping poison into the lake , all the fish and other aquatic animals will die.
7.If we recycle more, we (help).....will help..... the Earth.
8.If people(travel)....travel...to work by bus , there will be fewer car fumes.
9.We will save thousands of trees if we don't waste paper.
10.Factories won't dump waste into rivers if the government (fine) ...fines... them heavily.
IV.Put the verbs in brackets into the correct form.(Câu điều kiện loại II)
1.If I were you,I(look)...would look... for a new place to live.
2.If Lan wasn't ill, she(join)....would join...out tree planying activity.
3.If there were fewer cars on the road, there(be)...would be...less pollution.
4.If people really cared about the environment, they(not dump) ....wouldn't dump...waste into the lake.
5.If there was no fresh water in the world, what(happen)....would happen.....?
6.If you(be)....were.....the president,what would you do to help the environment?
7.They get sick so often.If they exercised more, they(be)....would be....heathier.
8.If I(have).....had.....one million US dollars,I would build more parks in our city.
9.Quan's mother is unhappy.If Quan tided his room every day, his mother(not be).....wouldn't be.....so upset.
10.There isn't a garden at house. If there were, we (grow).....would grow...... vegetables.
#Chúc bạn học tốt!

1. By the time we _____ to the cinema, the film had started.
A. gets B. had got C. has got D. got
2. When the policeman came there, the robber _____
A. had left B. has left C. left D. was left
3. If you were the president, what _____ you do to help the environment?
A. will B. did C. would D. do
4. The village's drinking water _____ with poisonous chemicals since the factory came into operation.
A. contaminates B. is contaminated C. has contaminated D. has been contaminated
5. When the policeman came to the scene, the driver of the car _____
A. have left B. had left C. leaves D. was left
6. You will recognize Jenny when you see her. She _____ a red hat.
A. wears B. is wearing C. will wear D. will be wearing
7. Recent_____ developments have made robots more user-friendly and intelligent.
A. science B. scientist C. scientific D. scientifically
8. If we use water_____, more people will have cleaner water.
A. care B. carefully C. careless D. carelessly
9. Water pollution make some aquatic animals_____
A. dying B. to die C. die D. died
10. She prefers English _____ France.
A. to B. for C. at D. in
11. Three hundred people _____ homeless by the earthquake.
A. left B. were leaving C. were left D. had left
12. By the time we got to the cinema, the film_____
A. had started B. started C. starting D. has started
13. Many people die_____ food poison today.
A. at B. of C. in D. on
14. The _____ buried the whole village while people were still sleeping in their houses.
A. drought B. flood C. mudslide D. tornado
15. If people _____ to work by bus, there _____ fewer car fumes.
A. to travel / be B. travel / are C. will travel / be D. travel / will be
16. If people didn't throw rubbish in the street, it _____ attractive.
A. will look B. would look C. look D. to look
17. There are about 750 million English speakers in the world, and this number _____ fast.
A. is increasing B. to increase C. are increasing D. increase
18. In the future, natural disasters_____ accurately with the help of technology.
A. to predict B. predict C. will be predicted D. will predict
19. On my birthday, I was very pleased because I______ a nice present.
A. receive B. had received C. receives D. am receiving
20. Water _____ in the lake has made the fish die.
A. pollution B. pollute C. polluted D. polluting
21. The train or HN _____ at 7a.m tomorrow.
A. leaves B. leaving C. to leave D. left
22. Environmental pollution has_____ to lots of health problems.
A. caused B. got C. made D. led
23. The heavy rain has caused _____ in many parts of the country.
A. drought B. storms C. forest fire D. floods
24. By the time we _____ to the cinema, the film had started.
A. had got B. got C. were getting D. get
25. A person who _____ the bagpipes is called a piper.
A. plays B. performs C. entertains D. does
26. The team's success was largely_____ to her efforts.
A. because B. due C. since D. however
27. I often drink coffee, but today I _____ tea.
A. am drinking B. drink C. drank D. drinks
28. If you_____ the president, what would you do to help the environment?
A. are B. had been C. were D. was
29. Eating too much sugar can _____ to health problems.
A. cause B. lead C. make D. take
30. Emergency teams are still removing the _____ from the plane crash.
A. dirt B. debris C. dust D. air

Question I: put the verbs in brackets into the correct form.( câu điều kiện loại 1)
1. If we( recycle).......recycle..... more, we help the earth.
2. factories( not dump).......won't dump..........waster into rivers if the government fine them heavily.
3. if people travel to work by bus, there( be)..will be.... fewer car fumes.
4. we( save) ...will save.......thousands of trees if we don't waste paper.
5. if we use water carefully, more people( have)..will have..fresh water.6. if the factory( continue)........continues.... dumping poison into the lake, all the fish and other aquatic animals will die.
7. if we recycle mỏe, we( help).........will help............. the earth.
8. if people ( travel)...........travel........ to work by bus, there will be fewer car fumes.
9. we save tthusands of trees if we( not waste).................don't waste paper.
10. factories don't dump waste into rivers if the govenment( fine).......fine.......... them heavily.
Question II. put the verbs in brackets into the correct form.
1. if he( study)......studies........ harder, he can passan exam.
2. she may be late if she( not hurry)....does not hurry..............3. if you study harder, you(pass)......will pass............ the exam.
4. if you are kind to me, I(be)......will be............good to you.
5, if he( give)............gives............up smoking,as his doctor orders, he will be soon well again.
6. you( not pass)......will not pass........your driving test unless you drive more carefully.
7. he'll be ill if he( not stop).......does not stop...........worrying so much.
8. we'll go to the beach tomorrow if it( be)......is................... nice.
Question III. put the verbs in brackets into the correct form.( câu điều kiện loại 2)
1. if I were you, I(look)....would look.............. for a new place to live.
2. if Lan wasn't ill, she( join)........would join.. out tree plating activity.3. if there were fewer cars on the road, there(be).....would be................ less pollution.
4. if people really cared about the environment, they( not dump)...........wouldn't dump.......waste into the lake.
5. if there was no fresh water in the world, what(happen).....would happen........
6. if you (be)..........were.......the president, what would you do to help the environment?

Chọn 1 từ trong ngoặc:
1. Next week our class is having a discussion about finding_______ways to reuse old items before throwing them away. (Interested/ Surprising/ Useless/ Survey)
2. It is a good idea to______our clothes with our friends or cousins. ( Change / Swap/ Turn/ Send)
3. If people turn off all electric appliances in one hour all over the world, they can save a lots of_________( Electric/ Electrical/ Electrician/ electricity)
4. You should put the food in a reusable box___plas bags. (By/ Instead of/ Because of/ Without)
5. If we use_______paper, we will save a lot of trees. (Fewer/ Less/ More/ Much)
6. Don' t throw rubbish into the river because you will make it______________>(Greener/ Dirty/ Cleane/ Fresher)
7. If there is a rubbish bin in every class, the classroom will become_______________( Harmful/ Lighter/ Dirtier/ Cleaner)
8. If we all use_________bags, we will help the environment. ( New/ Cheap/ Reusable/ Reduced)
9. This newspaper is made of_____paper. (Recycle/ Recycled/ Old/ Waste)
10. Please collect all the recyclable materials, and take them to the_______-factory. ( Recycle/ Recycled/ Recyclable/ Recycling)
11. Reduce, reuse, recycle is said to encourage people to waste less, by using less and using things, in order to__________the environment. (Harm/ Damage/ Pollute/ Protect)
12. These three Rs_____________reduce, reuse and recucle. (Stand up/ Stand for/ Ask for/ Means)
13. If you have old clothes, will you give them to those___________?(Needs/ To need/ For needing/ In need)
14. It's very_________--to swim there. The water is healthy polluted (safe/unsafe/unpopular/exciting)
15. Many girls and women_________aerobics to keep fit. (play/ go/ do/ have)
I. chọn từ đúng
1.I think we waste _______ the factory has polluted the lake
A. for B.to C.from D.in
2.________ pollution occurs when the atmosphere contains gases, dust, or fumes in harmful amount
A.soil B.air C.noise D.light
3.If you_____ the president what______ you do the help the environment?
A.were/would B.are/will
4.Communication breakdown may happen________ cultural differences
A because B due to C despite of D since
1-C
2-B
3-A
4-B
ko cóp:)
chomknhe