4. Please let me know 　　　　　　　　　　　　　　(他一回来). (2000陕西)

3. It’s three years since he 　　　　　　　　　　　　　　　　　　(入团). (2001宁夏)

2. 　　　　　　　　　　　　　　　　　　　　　(有一场音乐会)a concert tomorrow afternoon. (2000甘肃)

1. When I got to the cinema, 　　　　　　　　　　　　　　　　　　　　(电影已经开始了二十分钟了). (2001黄岗)

10. About 400 years ago, Galileo(伽利略) proved that the earth 　　　　　(go) around the sun. (2002陕西)

B) Complete the following sentences:

9. They never knew what 　　　　　(happen) to the world in a hundred years. (2002南充)

8. Mr. Green and his wife 　　　　　(live) in London for a few years before they

　 　　　　　(come) to work in China in 2001. (2002曲靖市)

7. Mr. Wang 　　　　　　(read) a newspaper in the office at this time yesterday. (2002上海市)

6. By the end of last term, they 　　　　　(work) there for ten years. (2002辽宁)

5. --　　　　 　your uncle 　　　　　　(return) the video tapes to Mr Fox?

　 --No. They’re still in his bedroom. (2002南通市)