句型转换

1. Jenny’s birthday party is March 19th. （对划线部分提问）  

_______ _______ Jenny’s birthday party?

2. He is very well. (同上)  

_______ ________ he?

3. His uncle is thirty-one. （同上）  

_______ _______ ______ his uncle?

4. How old are you? (同义句)  

_________ your ________?

5. —Is your school trip on June 1st? (做肯定回答)  

    —Yes,  ______       ______ 

针对事项（1），下列说法中正确的有（）。

A.10

B.5

C.15

D.20