1 The floor is cleaned by me everyday

2 The trees are watered by Nga in the morning

3 The children are often given some gifts on Christmas day

4 He isn't told what to do

6 The floor was cleaned 2 hours ago

7 The trees were often watered in the morning by Nga last year

8 The children are often given some gifts on Christmas day

9 He wasn't told what to do

11 The floor will be swept by me

12 The trees used to be watered by Nga in the morning 

13 The children should be presented some gifts on Christmas Day

14 He can't be taken to the cinema

15 You can't be helped with your homework

1F

2T

3T

4NG

5NG

6T

7NG

dài quá ờ...

1 C

2 A

3 A

4 A

5 D

I

1 B

2 D

3 A

4 B

5 D

6 D

7 C

8 B

9 A

10 C

II

1 knew

2 didn't play

3 to get

4 write

5 didn't use to swim

III

1 D

2 A

3 B

4 D

4 B

1. It's nice to see them again.

2. It's difficult to give an exact figure.

3. It's interesting to talk to you.

4. We're pleased that you are here.

5. It's hard to find a good interpreter.

6. I'm confident that you will get a job.

7. I'm pleased that you're better.

8. We're glad that you escaped the building safely.

1. It's nice to see them again.

2. It's difficult to give an exact figure

3. It's interesting to talk to you.

4. We're pleased that you are here

5. It's hard to find a good interpreter

6. I'm confident that you will get the job. 

7. I'm pleased that you're getting better

8. We're glad that you escaped safety the building