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Ex 1
1. You came to live in Paris a long time ago (living)
-> You have been living in Paris for a long time
2. Mary very seldom travels alone (used)
-> Mary isn't used to traveling alone.
3. I'm sorry you and Sarah have had a quarrel (fallen)
-> I'm sorry you have fallen out with Sarah
4. A new gallery has borrowed some of our paintings (loan)
-> A new gallery has asked for the loan of some of our paintings
5. People at the back couldn't hear the speaker because of the sound quality
-> The sound quality made it impossible for people at the back to hear the speaker
6. The present will be right for Betty, won't it?
-> The present suits Betty, doesn't it?
7. I like your pullover
-> The pullover I like is yours
8. In three weeks, Michael's health greatly improved
-> In three weeks, Michael makes a great improvement in health
9. Her advice to her son was always good
-> She always gave her son good advice.
10. I think I ought to leave now
-> I think it's high time I left now
Ex2:
1. I wouldn't go sailing in this weather if I were you => You had better not go sailing in this weather
2. I'm sure he was living in Paris two years ago => He must have been living in Paris for 2 years
3. The sky was soon filled with clouds => It was not long for the sky to be filled with clouds
4. His last visit to Zurich was in 1991, Tom told me => Tom said, "I have visited Zurich since 1991"
5. I drove to West London => I came to West London by car
6. Sophia raised that topic at last month's meeting => That topic was raised at last month's meeting by Sophia
7. Their work is bad because they had no raining => If they had had raining, their work wouldn't be bad
8. You only married me because I can cook =>You only get married to me because I can cook
9. When he crossed the road, he didn't look left or right => Without looking left or right, he crossed the road
10. John said the mistake was his secretary's fault => John blamed his secretary for the mistake
57. Did you enjoy yourself last night? (time)
did you have a good time last night?
58. ldon‘t want to go to the party tonight > I don' t feel like. ..going to the party tonight......
59. She can' t have more children because of her age. > She is too .....old to have more children......
60. He lost his money simply because he wasn' t careful > If .....he had been careful, he wouldn't have lost his money simply.......
61 Tom and Mary moved to Paris 20 years ago. >lt is.....20 years since tom and mary moved........ ............
62. I haven’t seen so much rain for along time. ==> It....is a long time since I saw so much rain......
64. It is high time for US to go home => It is high time we .......went home..... .....
65. You can’t go in to this restaurant without a jacket and tie. =>Unless ...you have a jacket and tie, you can't go into this restaurant ...
66. The question was so difficult that no one could answer it. ==> It was such ...the difficult question that no one could answer it......
67 She hasn’ t finished the letter yet. => This letter ...hasn't been finished yet...
68. He isn't good at English. He can' t get a job. => If. ......he were good at english, he could get a job...............
69 Mary doesn't spend much money. She spent much money last month => Mary doesn' t....spend as much money this year as she did last month.....
70. The weather isn't t fine We can ’t go for a walk in the woods. => If ........the weather was fine, we could go for a walk in the woods............ ..
71. I' ll ask someone to make a new dress. --> I'll have ......a new dress made..........
72. The bridge might be built in a hurry.=>. People ....... . ..........might build the bridge in a hurry..... ................. . .....
73. You really should be able to dress yourself by now.=> It’s high time ....you dressed yourdress....
74. i wish i hadn’t told him what we were planning to do that evening.=> I regret ...telling him what we were planning to do that evening. ....
75. I have never eaten with knives and folks before. => This is ....the first time i have eaten with knives and folks....
76. “Why don’t you ask Tom for help, Mary?” Ba said.=> Ba suggested..mary should ask tom for help...
77.Ba is too young to see horror films.=> Ba is not.....old enough to see horror films............
79. They once started these machines by hand. => They used to ..these machines by hand ..
80. He works hard and he will pass the exam. => If he...didn't work hard, he wouldn't pass the exam......
57. Did you enjoy yourself last night? (time)
=> Did you have a got time last night
58. ldon‘t want to go to the party tonight > I don' t feel like. ..going to the party tonight......
59. She can' t have more children because of her age. > She is too .old to have more children..........
60. He lost his money simply because he wasn' t careful > If ....he had been careful, he wouldn't have lost his money simply ....
61 Tom and Mary moved to Paris 20 years ago. >lt is..20 years since Tom and Mary moved to Paris....
62. I haven’t seen so much rain for along time. ==> It..a long time since I last saw so much rain........
64. It is high time for US to go home => It is high time we ..went home ....
65. You can’t go in to this restaurant without a jacket and tie. =>Unless ..you have a jacket and tie, you can't go into this restaurent....
66. The question was so difficult that no one could answer it. ==> It was such ..a difficult question that no one could answer it .......
67 She hasn’ t finished the letter yet. => This letter hasn't been finished by him yet ......
68. He isn't good at English. He can' t get a job. => If. ..he were good at English, he could get a job .....
69 Mary doesn't spend much money. She spent much money last month => Mary doesn' t.spend as much money this month as she did last month ........
70. The weather isn't t fine We can ’t go for a walk in the woods. => If .the weather fines, we will go for a walk in the woods........
72. The bridge might be built in a hurry.=>. People ..said that they might built the bridge in a hurry..
74. i wish i hadn’t told him what we were planning to do that evening.=> I regret ...telling him what we were planning to do that evening....
75. I have never eaten with knives and folks before. => This is the first time I have ever eaten with knives and folks........
77.Ba is too young to see horror films.=> Ba is not.old enough to see horror films ..........
79. They once started these machines by hand. => They used to .start these machines by hand . ..
80. He works hard and he will pass the exam. => If he.workes hard, he will pass the exam......
Còn vài câu mk chưa làm đc bn thông cảm nha!!!! 
1. Ann told .............John not to leave the door unlocked................
2. If you ..........are a vegetarian, you shouldn't eat meat................
3. It's ..........was in 2001 that Peter last visited this house.................
4. He ..................is so short that he couldn't play basketball...............
Vieets laij caau
1. He said he was got guilty of stealing the car
-> He deied having stolen the car
2. Is this the only way to reach the city centre?
Isn't there any other way reaching the city centre?
3. He never suspected that the money had been stolen
-> At no time did he suspect the money had been stolen
4. It's my opinion that you should take more exercise
-> If I were you, I would take more exercise
5. I was going to leave , but because of what he said, I didn't
-> She persuaded me not to leave
6. He was very sorry that he didn't see Andrey on her trip to London
->He greatly regretted not seeing Andrey on her trip to London
7. It's thought that the accident was caused by human error
-> The accident is thought to have been caused by human error
8. " Will you be visiting the Taj Mahal when you go to India?" he asked Elizabeth
-> He asked Elizabeth if she would be visiting the Taj Mahal when she went to India
9. " I think you should try the chicken Marengo," said the waiter
-> The waiter recommended me to try the chicken Marengo
10. This is the most delicious cake I have ever tasted
-> I have never tasted such a delicious cake
Write the second sentence so that it has the same meaning to the first one :
1. I think it would be a good idea to take the train.
=> I suggested ...........taking the train...........
2. She went out, nut she didn't say a word.
=> She went out without ......saying a word......
3. I often go to bed late.
=> I am used ......to going to bed late........
4. What about going to the cinema tonight ?
=> Shall we ........go to the cinema tonight........ ?
5. " Why don't you go with me ? ", he asked me.
=> He asked me why ......I didn't go with him........
6. She enjoys going swimming.
=> She is interested in .....going swimming..........
7. Does he spend most of his free time playing video games ?
=> Does it take .......he most of his free time to play video games....... ?
8. Does it take you 3 hours to do this task ?
=> Do you spend .......3 hours doing this task... ?
9. Lan didn't have breakfast, so she is very hungry now.
=> Because Lan ........didn't have breakfast, he is very hungry now........
10. Ho Chi Minh City is the largest city in Viet Nam.
=> No cities .......in Viet Nam are as large as Ho Chi Minh City.........
Quá khứ & hiện tại hoàn thành
1.When did you start learning English?
-->How long_____have you learnt English?____
2.How long is it since you began to play for manchester team?
-->When__did you play for manchester team ?_______
3.When did mary go shopping with my aunt?
-->How long is it____since mary last went shopping with my aunt ? __
4.How long have you worked for ABC bank?
-->How long ago____did you work for abc bank?__
5.When did you begin to play for the school soccer team?
-->How long____have you played for the school soccer team ?__
6.How long have they worked this kind of job?
-->When___did they work this kind of job?___
7.How long ago did you last see peter?
-->How long is it__since you last saw peter?__
8.When did he begin to teach English at this school?
-->How long__has he taught English at this school?__
9.How long have they got engaged?
-->When___did they get engaged?__
10.When did your family start to live in the city?
-->How long____has your family lived in the city?___
11.We haven't eaten this kind of food before.
--> This is the first time.I have eaten this kind of food....
12.this is the firs time i have gone to Vung Tau.
-->I have never..gone to Vung Tau before...
13.This is his firs travel to HCM city.
-->This is the first time..he has travelled to HCM city..
14.This is the firs time we have tasted such delicious food.
-->We have never..tasted such delicious food before..
15.I have never written a letter to a foreigner before.
-->It is the first time..I have written a lettter to a foreigner .
16.This is the firs time she has attended the club.
-->She has never..attended the club before..
17.My sister has not come to Peter's house before.
-->This is the first time..my sister has come to Peter's house.
18.I have never seen a dirtier-looking dog before.
-->This is the first.time I have seen a dirtier-looking dog..
19.This is the first time we haven't tasted such delicious food
-->We haven't.tasted such delicious food before..
20.This is the first time I have written such a long letter.
-->I have never...written such a long letter..
Tự vẽ hình nha.
c. Ta có: \(\left\{{}\begin{matrix}\widehat{BFA}=\widehat{FIA}+\widehat{IAF}\\\widehat{FAB}=\widehat{MAB}+\widehat{FAM}\end{matrix}\right.\)
Mà \(\widehat{FIA}=\widehat{MAB}\) (Cùng phụ \(\widehat{ABI}\) )
Và \(\widehat{IAF}=\widehat{FAM}\) (gt)
\(\Rightarrow\widehat{BFA}=\widehat{FAB}\) Hay \(\Delta ABF\) cân tại B.
Mà \(BE\perp AF\) ( \(\widehat{AEB}=90^0\) )
Nên \(AE=EF\) (1)
Ta lại có: \(\left\{{}\begin{matrix}HK\perp AE\\\widehat{HAE}=\widehat{KAE}\end{matrix}\right.\) Suy ra \(\Delta AHK\) là tg cân.
\(\Rightarrow HE=EK\) (2)
Từ (1)(2)suy ra \(AHFK\) là hình bình hành.
\(\Rightarrow FK//IA\)
Hay \(AIFK\:\) là hình thang. Để AIFK nội tiếp được đường tròn thì \(\widehat{BIA}=\widehat{IAM}\) \(\Rightarrow\widehat{BIA}=\widehat{ABI}\) \(\Rightarrow\widehat{MBA}=\widehat{MAB}=45^0\)
Hay M là điểm chính giữa cung AB./.
Có gì không hiểu cứ hỏi mình nha. !
Exercise 4 :
2, When I slow, I will late for the flight.