6.我们必须保持教室整洁。We must ____ our classroom______.

5.他迟早能解决这个难题。

　 ______ ________ ________ he’ll _______ the hard ______.

4. 昨天那场电影什么时候开始的?

______ ______ the film ______ yesterday?

3. 我父亲昨天晚上直到我们吃晚饭时他才回来。

My father_____ ______ ____ ____we had supper yesterday evening.

2. 他昨天没来上学，因为他病了。

He _____ _____ to school because ______ _____ ill yesterday.

1. 警察把那个小孩从水里拉出来。

The policeman　 ______　 the child out　 ______　 the water.

20. We must keep everything________ and tidy.

　 A. cleaning B. to clean C. clean D. cleaned

三，完成句子, 根据所给汉语完成下列句子，每空一词。

19. I am so tired. I want to _________ a rest.

　 A. have B. make C. keep D. like

18. Listen! What's that? I can hear ______.

　 A. nothing B. no thing C. something D. anything

17. When we were young, Mum couldn't leave us by ______.

　 A. ourselves B. weselves C. ourself D. usselves