3. I can’t decide which one I should buy . (改为简单句)

　 I can’t decide which one ______ ______ .

2. We plant trees every year .(改为被动语态)

　 _______ ______ ______ every year .

1．　 Sixteen-year- olds should be allowed to drive .(改为否定句)

Sixteen-year-olds ______ _______ _______ allowed to drive .

15. Parents are always strict _______ their children .

　　 　　　A．for　　　 B. to　　　 C. with　　　 D. of

14. I think _______ a good girl .

　　　　 A. she　　　　 B. her　　　 C. he is　　　 D. for her

13. We can learn ______ from ________ .

　　　　 A. a lot , each other 　　　　　　B. lot , others　　

C. many , each other　　　　　 D. lots of , other people

12. I ______ think teenagers ______ go out at night .

　　　　 A. / , shouldn’t　　 B. don’t , should　　 C. don’t , aren’t　 　D. / , aren’t

11. Can we think of another way to keep ______ teachers ______ students happy .

　　　　 A. all , or　　　 B. all , and　　　 C. either , or　　 D. both , and

10. The machine in the corner is making a lot of _______ .

　　　　 A. noise　　　 B. noisy　　　　 C. noisily　　　 D. noises

9. Everyone ______ to have a good rest .

　　　　 A. needs　　　　 B. need　　　　 C. needn’t　　　 D. don’t need