15. The big box is too heavy for me____. A. to carry　 B. to carry it　 C. carry

14. Can you tell me the best way __ the problem? A. solve B. solved C. to solve

13. She said she had some trouble ____ her homework.

　　 A. finish B. finishing C. to finish 　

12. Do you enjoy __ on the Internet? A. surfing B. surf C. to surf

10. It’s Sunday today. What about ____ the mountains?

　　 A. to climb B. climb C. climbing　

9.If you practice _______ English every morning, you will improve it quickly.

　　 A. to read B. reading C. read　

8. Don’t laugh ___ others. You should help them. A. at B. to C. of

7. I read very slowly.　 I can’t spell some English words, _____.　　

　　A. also　　　 B. either　　　 C. but

6.When we practice English speaking, we often end up ____in Chinese.

A. speak　　 B. spoken　　 C. speaking

5. Lucy thinks that ____ English movies is a good way.　　

A. watch　　 B. watched　　 C. watching