题目内容：

句型转换（共5小题，计5分）

1.My brother wants to join the music club. (改为一般疑问句）

_____ your brother want to join the music club?

2.My mum’s birthday is on 7th October. (对划线部分提问)

______ is your mum‘s birthday?

3.It is her new sweater. (改为复数句）

______ their new sweaters.

4.Do you know Mary is from America? (否定回答）

No, I ______.

5.How much are these yellow socks? (改同义句）

How much is this ______ of yellow socks?