handkerchief1/C. yesterday

2/B. handkerchief

3/Hun saw the accident on the way home.

4/A man used his mobile phone to call the emergency service. A few minutes later, an ambulance arrived and sent the boy to the hospital.

5/No, he didn't

1/Last year, we spent a week in My Son and I didn't want to leave

2/He is said to be the most intelligent student in class

3/It's interesting to have a vacation abroad

5/Hoa burnt her hand while she was cooking dinner.

4/Will the waste paper be recycled in the local factory?

II.

1. C

2. B

3. Hung saw the accident on the way home.

4. A man used his mobile phone to call the emergency service. A few minutes later, an ambulance arrived and sent the boy to the hospital.

5. No, he didn't.

III.

1. Last year, we spent a week in My Son and I didn't want to leave.

2. He is said to be the most intelligent student in class.

3. It's interesting to have a vacation abroad.

4. Will the waste paper be recycled in the local factory?

5. Hoa burnt her hand while she was cooking dinner.