21. Wr.Li ________ (teach) us English ten years ago .
22. Yesterday my grandma ________ (tell) me a story about sua wukong . 23. We ________ (become) close friends when we were youg .
24. Our school ________ (hold) a sports meeting this spring and our class was the first .
25. He ________ (keep) talking in class and the teacher was angry with him . 26. I ________ (try) an exciting sport once . 27. The Browns ________ (go) skiing last Saturday . 28. He ________ (play) badminton last Sunday . 29. He ________ (fall) toward the ground yesterday . 30. It ________ (be) snowy yesterday .
31. He ________ (do) his best to win the game days ago .
32. He ________ (drop) his books on the ground when he walked to school this morning .
33. We ________ (begin) to learn English 8 years ago . 34. They ________ (catch) the thief at last .
35. We ________ (hold) a sports meeting last summer . 36. I ________ (prefer) training on the play ground before . 37. The wind ________ (stop) me to walk on last day . 38. He ________ (jump) off the platform five minutes ago . 39. Zhang Di ________ (look)down at the ground when he stood on the platform .