Question

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

Answer 1

【答案】D
【解析】句意：你不必现在归还这本书，如果你喜欢，你可以到下周再还。have to必须；can't不能；mustn't不准，一定不要；needn't不必。根据You can keep it until next week if you like.（你可以到下周才还。），可知现在不必还，用needn't。故选D。