1. 给下列问句选择相应的答语

A. Great！ B. It's on March 21st. C. His birthday is on November 6th. D. Thank you. E. I usually eat a birthday cake with my friends.

1. （1） When is your father's birthday?
3. （2） Happy birthday, Mum!
5. （3） Let's cook noodles together!
7. （4） What do you often do on your birthday?
9. （5） When is your grandma's birthday?