1. 根据表格，回答问题。

Thing	Date
my birthday	April 20th
my mother's birthday	February 23rd
my father's birthday	August 21st
my grandpa's birthday	November 10th

1. （1） When is your birthday?
3. （2） When is your mother's birthday?
5. （3） When is your father's birthday?
7. （4） When is your grandpa's birthday?