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Đáp án A
Giải thích: thời hiện tại hoàn thành với trạng từ “for”
Dịch: Đã 2 tháng rồi anh ta không cắt tóc.
33.It’s over six months since Duong last had his hair cut.
A.Duong has never had his hair cut before.
B.Duong hasn’t had his hair cut for six months.
C.Duong has had his hair cut for six months ago.
D.Duong hasn’t had his hair cut for over six months.
38.People say that prevention is better than cure.
AThat prevention is said is better than cure B.It is said that prevention is better than cure
Cprevention is better than cure is said by people.DPrevention says to be better than cure
39.He said “If I have a computer ,I can play games.”
A.He said if he had a computer ,he could play games.
B.He told me to give him a computer to play games.
C.He could play games because ha had a computer.
D.He could play games if he gave me his computer.
40. The woman was too weak to lift the suitcase.
A. Although she was very weak, she could lift the suitcase .
B. The woman shouldn’t lift the suitcase because she was so weak
C. The woman lifted the suitcase, so she wasn’t very weak.
D.She was so weak that she couldn’t lift the suitcase.
1 ...... people didn't use a lot of vehicles, the air wouldn't be polluted
2 ...... two months since he last got his hair cut
3 ..... being a developed country, Singapore is not polluted by industry
4 .... New Zealand and Australia are surrounded by the sea
If people use a lot of vehicles,the are will be polluted
It has been two months since the last time he got his hair cut
Despite being a developed country,Singapore is not polluted by industry
Both New Zealand and Australia are surrounded by the sea
Rewrite the sentences:
1. This is the first time I've ever painted a mural over graffiti.
==> I have never painted a mural over graffiti before
2.David got a bad cold because he did not wear his and warm clothes.
==> Because of not wearing and warm clothes, David got a bad cold
3. They have not cleaned up the streets for five months.
==> It's five months since they last cleaned up the streets
4.We have donated books and clothes for five years.
==> We began donating books and clothes five years ago
5.John has not had his hair cut for over six months.
==> It is over six months since John last had his hair cut
Rewrite the sentences:
1. This is the first time I've ever painted a mural over graffiti.
==> I have never painted a mural over graffiti before...
2.David got a bad cold because he did not wear his and warm clothes.
==> Because ..David didn't wear his and warm clothes, he got a bad cold.
3. They have not cleaned up the streets for five months.
==> It's ..five months since they last cleaned up the streets.
4.We have donated books and clothes for five years.
==> We began ..donating books and clothes for five years.
5.John has not had his hair cut for over six months.
==> It is...over six month since John last had his hair cut
1. Peter hasn’t had his hair cut for over 3 months.
=> It is over...............3 months since peter had his hair cut...........................................................................
2. People will only become aware of the problem if you increase the publicity.
=> Only if ............you increase the publicity will people become aware of the problem........................(đảo ngữ...............................................
3. Scientists have tried very hard to find a cure for AIDS.
=> Enormous .........efforts have been made by scientists to find a cure for AIDS............(make effort to do : nỗ lực làm gì).............
1.They last talked to each other two months ago. ---> They haven't talked to each other for two months.
2.The last time she saw her elder sister was in 1999. --->She hasn't seen her elder sister since 1999.
3.She hasn't written to me for years.---> It's years since she wrote to me.
4.Robert and Catherine have been married for ten years.--->It's ten years Robert and Catherine married.
5.It's two weeks since they deaned their room.----->They haven't cleaned their room for two weeks.
6.It's over six months since John had his hair cut.---->John has had his hair cut for over six months.
7.how long is it since he wrote to you?--->When was the last time he wrote to you?
8.I last had my hair cut when I left her.--->I haven't had a new hair cut since I left her.
9.The last time she kissed me was 5 months ago.--->She hasn't kissed me for 5 months.
10.It is a long time since we last met.--->We haven't met for a long time.
11.I haven't seen him for 8 days.-->The last time I saw him was 8 days ago.
12.I haven't taken a bath since Monday.-->It is last Monday since I took a bath.
13.It's 2 years since i had a punture.--->I have had a punture for 2 years.
14.It's 2 months since he earned any money.--->He has earned any money for two months.
1 , They haven't talked to each other for two months
2, she hasn't seen her elder sister since 1999
3,It's years since she wrote to me
4,It's ten years Robberts and Cathetine married
5, They haven't cleaned their room for two weeks
Chúc bạn học tốt 
Đáp án: A
Giải thích: thời hiện tại hoàn thành với trạng từ “for”
Dịch: Đã 2 tháng rồi anh ta không cắt tóc.