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23. Jack left the office before I arrived

 When I arrived, Jack had left the office

24. Nam did all his homework and then he went out with his friends

After Nam had done all his homework, he wen out withhis friends

25. Nam bought a new bicycle, but first he saved enough money.

Before Nam bought a new bicycle, he had saved enough money.

gone abroad before

have you done this homework

you wait for your brother

1. He hasn't been abroad before

2. How did it take him to do his homework?

3. When did you wait for your father?

1. He hasn't gone abroad before.

2. How long have you done this homework?

3. When did you wait for you father?

1/The burglar escaped , and then the police arrived.

-->Before ..... the police arrived, The burglar had escaped ..................................

2/Before he went to shool , he had ironed his clothes.

-->First...........he ironed his clothes, then he went to shool.....................................

3/ He had hardly left the office when the telephone rang.

-->No sooner.......had he left the office than the telephone rang.............................................

4/I had only just put the phone down when the boss rang back.

-->Hardly......had I put the phone down when the boss rang back..........................

5/As soon as I got into the bath , someone knocked at the door.

-->No sooner......did I got into the bath than someone knocked at the door........................

6/Just as she put the phone down, it rang again.

-->Barely......did she put the phone down when it rang again..........................................

7/He got down to writing the letter as soon as e returned from his walk.

-->No sooner......did he got down to writing the letter than e returned from his walk.......................................

8/ She had hardly begun to speak before people started interrupting her .

-->Hardly.......had shebegun to speak when people started interrupting her . ............................

9/Sam played tennis yesterday and it as his first game.(never)

-->....Sam played tennis yesterday and he had never played it before............................

10/Sam is playing tennis now and it is his first game.(never)

-->.....Sam is playing tennis now and has never play it before............................................

11/How long is it since they went to Nairobi?(When)

-->.......When did they go to Nairobi...................................

12/Mac Kenzie wrote four best-sellers before he was twenty. (By the age )

-->...............Mac Kenzie wrote four best-sellers by the age of twenty....................................

13/Alice made an appointment, and went to see the doctor.

-->After......making .an appointment, Alice went to see the doctor.................................................

1. Jack left the office before i arrived

-> When I arived the office, Jack had left

2.During lunch, someone rang the bell

-> While i was having lunch, someone rang the bell.

3. I haven't been to the dentist for 6 months

-> The last time I went to the dentist was 6 months ago.

4. She has studied Japanese for 5 years

-> She began studying Japanese for 5 years.

5. She did all his work and then went to home

-> After doing all his work, he went to home.

6. Steven bought a new motorbike, but first he saved enough money

-> Before buying a new motorbike, Steven saved enough money.

7. The guests left and then we tidied the house

-> When we tidied the house, the guests had left.

8. I haven't heard fro them for ages

-> It 's ages since I last heard from them.

4. Shall we go to the circus on Sunday?

-> Do you consider going to the circus on Sunday?

5. Why don't you attend his party now?

-> I don't feel like attending his party now.

7. Shall we go to Dalat this year?

-> Do you consider going to Dalat this year?

8. Betty likes meeting people.

-> Betty enjoys meeting people.

9. I want you to live on your own.

-> Do you mind living on your own?

10. It's necessary to water those plants regularly.

-> Those plants need to be watered regularly.

11. She insisted that she should be called Mary.

-> She insisted on being called Mary.

12. He finally managed to get a job.

-> He finally succeeded in getting a job.

13. Tom collects antique coins. He gets interested in it.

-> Tom gets interested in collecting antique coins.

14. Farmers add fertilizers to help enrich the soil.

-> Farmers help enrich the soil by adding fertilizers.

15. They irrigate their fields to reclaim land.

-> They reclaim land by irrigating their fields.

1. This is the first time he went abroad  ->

He hasn't.gone.abroad before......

2.She started driving 1 month ago    -> She has..driven for 1 month....

3. We began eating when it started to rain -> We have.eatten before it started to rain...

4. I last had my hair cut when i left her -> I haven't..cut my hair since the last time I left her........

5.The last time she kissed me was 5 months ago -> she hasn't..kissed me for 5 month......

6.It is a long time since we last met  -> We haven't..met for a long time.....

7.When did you have it ? -> How long.is it since you had it..?....

8.This is the first time i had such a delicious meal   -> i haven't.had such a delicious meal before..........

9.I haven't seen him for 8 days -> The last...time I seen him was 8 days........

10.I haven't taken a bath since Monday -> It is...Monday since I last took a bath.................

1. he hasn't gone abroad before.

2. she has driven for a month.

3. we have eaten since it started to rain.

4. i haven't my hair cut since i left her.

5. she hasn't kissed me for 5 month.

6. we haven't met each other for a long time.

7. how long have you had it?

8. i haven't had such a delicios meal before.

9. the last time i saw him was 8 days ago.

10. it is monday since i took a bath.

1.He hasn’t gone abroad before

2.She has driven for a month

3.We have eaten since it started to rain

4.I haven’t had my hair cut since i left her

5.She hasn’t kissed me for 5 months

6.We haven’t met for a long time

7.How long have you had it?

8.I haven’t had a such delicious meal before

9.The last time i saw him was 8 days ago

10.It is for 3 days since i last took a bath

b, Have you ever known how to drive is kind of car before

c, This is the first time I have visited Scotland

d, While I were during dinner , the phone rang

1. The children are excited with the difficult games.

=> The more difficult the games are, the more excited the children are.

2. He is finding it easier to do this math exercise now.

=> He is getting easier in doing this math exercise now

3. To Alan's amazement, the passport office was closed when he arrived.

=> Alan was ............................................................................

4. I don't intend to tell you my plan.

=> I am not intending to tell you my plan.

5. What a wonderful performance!

=> How wonderful performance!

Rewrite the following sentences without changing their original meanings

1. The question was so difficult that no students in my class could answer it

=> The question was too.....difficult for us to answer.....

2. I suddenly heard a loud bang during my dinner

=> When.....I suddenly heard a loud bang.......

3. Shakespeare wrote that play in 1450

=> That play......was written in 1450 .....

4. Nobody painted this house again

=> This house....isn't painted by anyone......

5. She last watched that performance in 2008

=> She hasn't....watched a movie since the last time in 2008......

6. It took him three hours to do the crossword

=> He spent.....three hours solving that crossword.......

7. The robber made her give him money

=> The robber forced....make her give money.......

8. I advise you to eat lots of fruits because it is good for your health

=> You'd better .........eat fruit because it is very healthy...........................

9. I advise you to do more volunteer work to help the poor

=> You ought...do donations to help those less fortunate than us........

10. It's a pity that you don't study hard

=> You wish....study hard....

11. It is tiring to hear his story about his trip to Egypt over and over again

=> I feel....tired hearing him talk about his trip to Egypt.....

12. It is a long time since he last talked to me

=> He hasn't....talked to me in a long time.......