3．This book is the librarian's．(对划线部分提问)

　　　　　 _____ _____this book？

2．He sat down and turned on the light．(变为一般疑问句)

　　　　　 _____he_____ down and _____on the light？

1．The twins liked bananas better than apples．(改为同义句)

　　　　　 The twins_____ bananas_____ apples．

10．Our teacher told us that the earth _____(turn)around the sun．

　　 IV．按要求改写下列各句，每空限填一词：(10分)

9．You can'tfind Mr Green here．His family____(move)to London．

8．we_____(climb)the hills tomorrow morning？

7．Look at Xiao Ming．He is too tired to walk on．Let's stop_____(have)a rest．

6．He asked me if she_____(help) them do that next Sunday．

5．At night we can always see him _____(study)in his room．

4．They will wait until she _____(come)back．