选择可替换划线部分的选项。
小题1:When is your birthday?
A. age                B. date of birth       C. day
小题2:How old is he?
A. How is he          B. How old is she      C. What’s his age
小题3:What time does she play basketball?
A. Where              B. When               C. What
小题4:I often have lunch at 12:00.
A. eat                 B. eats                C. has
小题5:She is 9 years old.
A. She is 8 years old  B. Her age is 9        C. I am 9 years old