Question

【题目】You _________ cross the road when the traffic lights are red.

A.needn'tB.don't have toC.mustn'tD.may not

Answer 1

【答案】C

【解析】

句意：红灯时你不可以过马路。

考查情态动词。needn't不必； don't have to不必； mustn't禁止；may not可能不。根据“when the traffic lights are red.”可知此处是“禁止穿过马路”。故选C。