1. Lan and Minh have lived in Ho Chi Minh City______1999.

2. Hoa and Quan quarreled with each other some time_______ .

3. The house is very dirty. We haven’t cleaned it______ ages.

4. We haven't had a good meal______three weeks.

5. ______ Christmas, the weather has been quite good.

6. They have known each other______a long time.

7. They first met a long time_______.

8. They arrived home ten minutes_______.

9. It's two years_______ I last saw Quoc Anh.

10. How long is it_______you last saw' Linda?

Trả lời:

1. since              2. ago                 3. for                  4. for

5. Since              6. for                  7. ago                 8. ago

9. since             10. since