—_______ I return your English book?—No, you _______.A. Must; mustn’tB. Could; can’tC. Must; needn’t
—Chris has learnt English for only three months.—______! His English is so good.
—What else did Tina ask you about the trip to Nanjing?—She asked me ______.
The young lady took the dress out of the package and tried it on, only ______ if it fitted her.
—You don’t have to take a raincoat. It isn’t going to rain.—Well, I am not sure. It ______ do.
We all know some of the police’s duties are to keep order and ______ the law.