5. Tim has married to Mary for more than 10 years.

4. I couldn’t get through the gate because your car was on the way.

3. Perseverance (毅力) is a kind of quality - and that’s that it takes to do anything well.

2. The pipe serves for all the houses with water.

1.Why not having a try once again?

15. We ought to help each other in our work, ________? 　 A. can’t we　　　　 B. should we　　　　　　 C. shouldn’t we　　　　 D. ought to we

下列各句均有一处错误，请找出并改正。

14. ________ I water the trees on Tuesday? No, you needn’t.

　 　A. Can　 　　　　　　　　 B. Must　　 　　　　　　　 C. May　　 　　　　　　　　 D. Shall

13. She ________ have stopped her work halfway.

A. ought to not　 　　 B. ought not to　 　　　　　 C. not ought to　 　　　　　 D. doesn’t ought to

12. Must I get through the business in one evening?　 No, you ________.

　 A. mustn’t　　 　　　 B. haven’t　　　 　　　　　 C. needn’t to　　 　　　　 D. don’t have to

11. You ________ tell anybody else about it; this is a secret between us.

　 A. don’t　　　 　　　 B. needn’t　　　 　　　　 C. mustn’t　　　 　　　　 D. won’t