18. My mother　　　　 (be) a worker.

17. He　　　　 (clean) our classroom yesterday.

16. I　 　　　(be) a student in 1976.

15. Miss Li　　　　 (teach) us English now.

14. Mr. Brown　　　　 (teach) us English last term.

13. He　　　　 (have) a fever yesterday, but now he　　　 (feel)better.

12.　　　　 (do)you　　　　 (have) a good rest last night.

11. They　　　　 (stay) in London for 3 days last year.

10. Listen, Nancy　　　　 (laugh) in the dining-room.

9. Tom　　　　 (like) Chinese food.