1. 按要求改写句子。

1. （1） Lucy had to leave last week.(改为一般疑问句)

   Lucy leave last week?

3. （2） Would you like to go with me?(作肯定回答)

   Yes, .

5. （3） They can play the piano.(对划线部分提问)

   can they ?

7. （4） He stayed until I came back last night.(改为同义句)

   He until I came back last night.

9. （5） He isn't available because he is preparing for an exam.(改为同义句)

   He isn't because he is ready for an exam.