题目内容：

句型转换。

1.These tomatoes are nine dollars.(划线提问)

________ _______ ________these tomatoes?

2.The girl is my sister.She is in red.(合并一句) 

The girl ______  ________ is my sister.

3.They have a new bike each.( 同义句 ) 

______ of them ______ a new bike.

4.Can I help you? ( 同义句 )

 _______ can I _______ _____ you?

5.These pants are short. ( 同义句 )

These are _______ ________ .