动动脑。（选择相对应的答语，只填序号）
(     ) （1）Dad, can I have a drink ,please?
(     ) （2）Can I come in ?
(     ) （3）Can you help me?
(     ) （4）Can the bird fly?

A．Yes,please come in .

B．OK, let me help you

C．Yes , you can

D．Yes, the bird can fly.