I. Fill a/an,  X in each blank to complete the following sentences

1. a

2. the

3. a/ the

4. a/ the

5. the

6. the

7. a/ the/ the

8. the/ a

9. the

10. the/ the

11. X

12. the/ the/ X

13. the/ the

14. X/ X

15. X/ the

16. the/ X

17. X/ X

18. X

19. the

20. x/ the / X

I/

1/a

2/the

3/a-the

4/the-the

5/the

6/the

7/a-the-the

8/the-the

9/the

10/the-the

11/the-the

12/the-the-∅

13/The-the

14/∅-the

15/∅-the

16/The-∅

17/∅-∅

18/the

19/the

20/the-the-∅

II/

1b 2b 3d 4a 5c 6a 7c 8b 9d 10d 11b 12b 13c 14b 15b 16a 17a 18a 19b 20d

III/

1b 2a 3b 4c 5a

IV/

1d 2b 3a 4c 5c 6a 7b 8d 9c 10a

V/

1/I wish I had time to visit my old friends

2/If my friend waters the tree often,it woudn't had die.

3/My sister has been learning English for 5 years

4/The crops weren't good because there was a storm

5/The woman who's talking to the teacher is Minh's mother

6/If you don't work hard,you won't pass your exam

7/Mr Brown whose team had lost,looksvery sad