Question

【题目】-- Must I mop up the floor now?
-- No, you ________.
A.needn't
B.can't
C.shouldn't
D.mustn't

Answer 1

【答案】A
【解析】句意：——我必须现在拖地吗？——不，你不必。对must问句的肯定回答是must，否定回答是needn't。故选A。