1. 句型转换，每空一词。

1. （1） They have swept the floor and cleaned the window．(改为否定句)

     They swept the floor  cleaned the window．

3. （2） He draws very funny pictures．(改为现在完成时)

     He   very funny pictures．

5. （3） Tintin has been popular for 75 years ． (对划线部分提问)

         has Tintin been popular?

7. （4） He writes well．His brother writes better．(合并为一句)

     His brother writes  him．

9. （5） He studied in this school in 2010．(改为一般疑问句)

       he    in this school in 2010？