1. 句型转换

1. （1） They write the words on the blackboard. (对划线部分提问)

   they the words?

3. （2） I save the document next. （对划线部分提问）

   you next?

5. （3） The computer is behind you. （对划线部分提问）

   the computer?

7. （4） They often do their homework on their computers. （改为否定句）

   They often their homework on their computers.

9. （5） the, keyboard, use, these, to, words, write (.  )（连词成句）