14. He is ____ his sister in studying English. 　　 A. after B. back C. at the back　 D. behind

13. The shoes are ____ the same size, though of different colours. A. in　 B. at C. with　 D. of

12. They planted a lot of trees to hold ___ the wind and sand.

　　　 A. up　　　　　　　　　　 B. out　　　　　　　　　 C. down　　　　　　　　 D. back

11. Be careful ___ dealing with such a man. A. in　　　 B. with　　　　　 C. of 　　 D. for

10. It’s quite warm ___ February! A. in　　　 B. for　　　 C. with　　 D. about

9. Don’t waste time ___ doing such things!　 A. in　　　 B. on　　　 C. for　　　　　　 D. to

8. For some days Crusoe hid himself in his cave to ___ the savages.

　　　 A. keep out　　　　　　 B. keep from　　　　 C. keep with　　　　　 D. keep away

7. Cotton can be made ___ cloth.　 A. from　　　　　 B. of 　　 C. up of 　　　　　　　 D. into

6. The stories about the Great Wall, ____ this is one example, are well written.

　　　 A. on which　　　　　 B. at which　　　　　　 C. of which　　　　　 D. with

5. I’ll never forget the days ___which I stayed with them last year. A. in B. on C. at　 D. for