III.

1. has learned

2. have you known; have known

3. Has she felt

4. haven't seen; have been

5. Has she finished

6. 

7. have just made

8. Have you ever been

9. started

IV.

1. A. Have you watched a volleyball match? B. No, I haven't. I haven't watched a volleyball.

2. A. Have you won a competition? B. Yes, I have. I 've won a competition.

3. A. Have you seen a play? B. No, I haven't. I haven't seen a play.

4. A. Have you seen an action film? B. Yes, I have. I 've seen an action film.

5. A. Have you eaten Chinese food? B. No, I haven't. I haven't eaten Chinese food.

6. A. Have you met a famous person? B. Yes, I have. I 've met a famous person.

V.

1. has been

2. have been

3. has visited

VI.

1. Have .... seen; seen

2. go

3. have .... been

4. clean

5. takes

6. has eaten

Xin hay nhất!

III.

2. have you known - have known

3. Has she felt

5. Has she finished

6. Is your dog never bite - bited

8. Have you ever been

9. started

IV.

1. Have you watched a volleyball match? - No, I haven't.

2. Have you won a competition? - Yes, I have. 

3. Have you seen a play? - Yes, I have.

4. Have you seen an action film? - No, I haven't

5. Have you eaten Chinese food? - No, I haven't.

6. Have you met a famous person? - No, I haven't.

V.

1. has been

2. have been

3. has visited

VI.

1. Have .... seen - seen

2. go

3. have .... been

4. clean

5. takes

6. has eaten