根据问句选出答句，将序号填在括号里。
(   ) 1. Are you going to have a birthday cake?
(   ) 2. What are we going to do?
(   ) 3. Is she happy?
(   ) 4. Can you run fast?
(   ) 5. Can Fifi help the blind people?

A．No, she isn’t.

B．No, I can’t.

C．No, he can’t.

D．No, I’m not.

E. We are going to sing and dance.