句型转换。

1. Tom wants to have a party because next Saturday is his birthday. (就画线部分提问)      

                               Tom want to have a party?  

2. The little boy is very short. He can't get the book on the shelf. (改为同义句)      

The little boy___         ,                  ,                ,               get the book on the shelf.

3. Be careful，or a car may hit you. (改为同义句)   

       ___         ____       _____ careful, a car may hit you.

4. I don’t think he is right. (改为反意疑问句)      

I don't think he is right,                     _________?

5. He joined the army 2 years ago. (改为同义句)         

He                                       the army for 2 years.