1. Nowadays, many children are used to connecting the Internet everyday.

2. I couldn't keep in touch with him before because I had lost his phone number.

3. They have been working for this company for thirty years and they will retire next year.

4. We were delighted to receive your letter yesterday.

5. When we saw them, they were trying to find a new house near their workplace.

1 off

2 down

3 to

4 down

5 from

6 with

7 up

8 off

9 forward

10 down

off

down

with

down

from

to

up

off

forward

down

1. off

2. down

3.to

4. down

5.from

6. with

7. up

8. off

9. forward

10. down

1 turned it down

2 worn out

3 call off

4 turn up 

5 came across

6 carried out

7 broken into

8 gave up

9 took - off

10 set up

Refer =))

1.turn it down

2.worn out 

3.call off : trì hoãn

4.turn up : xuất hiện/được tìm thấy

5.come across

6.carry out

7.broken into

8.give up 

9.take her clothes off 

10.set up 

turned .. down

worn out

call off

turn up

came across

carried out

broken into

gave up

took off

set up

1. When did he last write to you?

2. How long is it since he talked to you?

3. How long is it since you telephoned him?

4. How long is it since you learned to drive?

5. How long ago did you learn spanish?

1 is he leaving - will be playing

2 are training

3 were you doing - called

4 had finished - went

5 don't really expect - smells

6 do you feel - think

8 have you been doing

9 got - had begun

has won

have you sat

have sat

have been sitting

have been playing

have played

has raised 

has been lecturing

has never missed

has been sleeping

has slept

1 retirement

2 unemployment

3 wooden

4 observation

5 researchers

6 psychologist

7 building

8 importance

9 introductory

10 technologically

1. When did you have this motorbike ?
2. I have visited HCM city 3 times before.
3. While Jim was traveling in Paris, he met his old classmate there.
4. I have never flown in a plane before yesterday.
5. I have visited my grandparents for 2 weeks.
6. I had worked for my father for 3 years before I got a job with a French company.

1.When did you have this motorbike?

2.I have visited HCM cite 3 times before.

3.While Jim was travelling in Paris, he met his old classmate there.

4.I have never flown in a plane before yesterday.

5.I have visited my grandparents for 2 weeks.

6.I had wored my grandparents for 3 years before I got a job with a Prench company.