Question

【题目】You return the book now. You can keep it until next week if you like.
A.needn't
B.have to
C.mustn't

Answer 1

【答案】A
【解析】句意：你不需要现在还书。如果你喜欢你可以保存到下周。needn't不必，have to必须，mustn't一定不要。根据下文“如果你喜欢你可以保存到下周。”可知此句是说“你不必马上还。”故选A。