9.　　　 It’s our duty to keep our environment clean and tidy. (就划线提问)

_______ _______ your duty?　

(10-29小题是同义句转换)

8.　　　 I’ve never spat in a public place, _______ _________? (完成反意疑问句)

7.　　　 He’s gone to the library, _______ _________ ?　 (完成反意疑问句)

6.　　　 I have already made something nice for you.　 (改否定句)

I haven’t made _________ nice for you _________.

5.　　　 I’ve lived here all my life. (就划线提问) _______ _______ have you lived here?

4.　　　 Lots of fishes have died, ________ ________?　 (完成反意疑问句)

3.　　　 We have learned 2,000 English words since 2001. (就划线提问)

_______ _______ English words ______ you learned since 2001?

2.　　　 I’ve known him since I was a child.　 (就划线提问)

_______ ________ have you known him?

1.　　　 I’ve been to a paper factory. (就划线提问)　　 _______ have you _________?

30.　 It _________ (not rain) since last month.

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