选择可替换划线部分的选项。
When is your birthday?
A. age                B. date of birth       C. day
How old is he?
A. How is he          B. How old is she      C. What’s his age
What time does she play basketball?
A. Where              B. When               C. What
I often have lunch at 12:00.
A. eat                 B. eats                C. has
She is 9 years old.
A. She is 8 years old  B. Her age is 9        C. I am 9 years old