must i clean my room now ?---no, you ___ .but you must clean it tomorrow .
问题描述:
must i clean my room now ?---no, you ___ .but you must clean it tomorrow .
A.must B. mustn't C.need D.needn't
写解释
答
D 从回答可看出他说现在不需要打扫.mustn't表示禁止,故选D