问题
My mother is ______ English teacher in _____ middle school.
A:a, an
B:an, an
C:an, a
D:a, a
B:an, an
C:an, a
D:a, a
正确答案是：
同类题型
They _______Sally and Bob. Sally _______my cousin.
Mrs White, why are you standing here?—I’m waiting for my son. He ___________ back from school.
How far is your home to your school?—It _________ me about twenty minutes by bus.
I think it is __________for them to find the lost bag with the help of the police.