按要求进行句型变化。

1. They moved to New York a month ago. (对划线部分提问) 

     ___________ ___________ they ___________ to New York?

2. They enjoyed the concert very much. (对划线部分提问) 

    ___________ ___________ they ___________ the concert?

3. Sophie has to look after her sick sister at home.(变成一般疑问句)

    ___________ Sophie ___________ to look after her sick sister at home?

4. Jim is 15 years old. Kate is 14 years old.(合并成一句) 

    Jim is ___________ ___________ Kate.

5. We often go hiking in spring. (用tomorrow改写) 

     We ___________ ___________ ___________ tomorrow.

6.  It took my mom five hours to make the big meal. (同义句) 

      My mom ___________ five hours ___________ the big meal.

7.  It's two hours'walk from here to the subway station. (对划线部分提问)

      ___________ ___________ is it from here to the subway station?

8. 天下雨时，我打的去上学。

      When it ___________, I ___________ a taxi to work.

9.   至于今天的作业，你最好问问萨姆。

      ___________ for today's homework, you'd better ask Sam.