用所给动词的适当形式填空。

1. Mike _______________ (write) English last night.

2. A policeman _______________ (see) two thieves steal a girl's mobile phone last week.

3. Mr. Wang _______________ (buy) a house in Shanghai in 2010.

4. Mary _______________ (begin) to begin Chinese last year.

5. My brother _______________ (not do) his homework yesterday.

6. I listened but _______________ (hear) nothing.

7. Our teacher usually _______________ (help) us when we were at school.

8. What _______________ he _______________ (do) last night?

9. What _______________ (do) you see three hours ago?

10. My brother usually _______________ (catch) a bus to go to school last month.

11. I _______________ (meet) my old friend a moment ago.

12. There _______________ (be) some beautiful flowers and some water in the vase just now.

13. —  _______________ you _______________ (take) part in the last singing contest?

     — No, I _______________.

14. Yesterday the girl _______________ (show) me a nice skirt. I _______________ (like) it very much.

15. I _______________ (make) a card for my cousin last Christmas.