问题
How much shall I pay for the telephone call? —You _____. It’s free.
A:mustn't
B:shouldn't
C:don't have to
D:can't
B:shouldn't
C:don't have to
D:can't
正确答案是:
同类题型
She always finishes her homework on time. She ________ leaves it for tomorrow.
I’m expecting a digital camera for long, but dad has no time to buy ______ for me.
When do you ______ every day?-After getting up and before going to bed.
My brother is a basketball player. —And he usually_____ very hard on the playground.