B. 1. It's high time you learned to look after yourself 

2. I'd rather you stayed at home this Christmas

3. I'd rather you helped your mother with housework 

4. It's high time the children went to bed

5. They last saw her was five years ago 

6. How long ago did he live in this city?

7. I last met them was a year ago 

8. He started to work in this factory in 2001

9. They are looking forward to their holiday

10. It's two years since we last visited Hanoi

Đáp án:

1. ...you learned to look after yourself.

2 ...you stayed at home this Christmas.

3. ...you helped your mother with housework.

4. ...the children went to bed.

5. ...saw her five years ago.

6. ...did he live in this city?

7. ...I last saw them 1 year ago.

8. ...to work in this factory in 2001.

9. ...forward to their holiday.

10. ...been two years since we last visited Hanoi.

    Chúc bạn học tốt =)) 

        -Minhh-