III. 单项选择（共10小题，计10分）
本题共有10个小题，请从每个小题的四个选项中，选出一个最佳答案。
21. Everyone likes my f ather because is friendly.
A. his B. him C. he D. himself
22. Before you go to Canada, you need to learn more it.
A. form B. in C. by D. about
23. Many city people their bikes to work every day.
A. ride B. will ride C. rode D. have ridden
24. We have done much to protect the environment. So the river is getting than before.
A. dirtier B. dirty C. cleaner D. clean
25. It’s every policeman’s dream to keep people and the traffic in good order.
A. safe B. healthy C. busy D. famous
26. --- Look! What’s on the ground?
--- Oh, it’s my sweater. Please .
A. pick it up B. put it on C. give it out D. take it off
