III. 1. C

2. D

3. D

4. A

5. B

6. C

7.B

8.A

9. A

10. B

IV.

1. POET

2. CAREFULLY

3. FRIENDLY

4. COLLECTION

V.

1. ... she was writing the letter then

2. ... why I was learning English

3. ... hurry up, you will miss the bus

4. ... study hard, you will pass the exam

5. ... you study harder, you will pass the final exam

6. ... i could go out with you

7. ... hoa would come here

8. It rains heavily so we can't go camping

9. haven't you

10. ... in their songs have been mentioned by a lot of musicians for centuries

1. she asked me why me was learning english

2. if you don't hurry up, you will miss the bus

3. if you study hard, you willl pass the exam

4. if you don't study harder, you won't pass the exam

5. i wish i could go out with you

6. i wish hoa would come here

7. because of the heavy rain, we can't go camping

8. haven't you

9. the ao dai has been mentained in their songs for the countries by a lot of musicians