16.B

17.B

18.A

19.A

20.D

21.FROM-TO

22.IN.IN

23.FOR

24.WITH

25.IN

26.AT-ON

27.BETWEEN

28-38: ảnh

39.DOES YOUR FATHER GO

40.AREN'T WATCHING

41.WHAT WILL YOU DO-I WILL VISIT

42.DOESN'T HAVE

43.RAINS

16. B

17. A 

18. A

19. A

20. B

IV 

1. on-and

2. in-in

3. with

4. for 

5. in 

6. at-in

7. betwwen

VI

1. Does your father go...

2. aren't watching

3. helping-is doing

4. will you do...- will visit 

5. doesn't have

6. rains 

VII 

1. What time does Nga get up in the morning ? 

2. You can play games in the afternoon but you must do your hw in the evening. 

3. Does Lan walk or ride a bike to school ? 

4. When it's hot,we often go swimming.

5. What is there in front of your house ? 

6. Where is your father sitting now ? 

7. My class starts at 7 o'clock in the morning. 

8.  I don't often go swimming with my friends.