Question

【题目】—I didn't see you at Jim's party last week. —I had to work that evening, so I _________ go.

A.needn'tB.mustn'tC.couldn'tD.shouldn't

Answer 1

【答案】C

【解析】

句意：——上周我没有在吉姆的聚会上看到你。——那天晚上我必须得工作，所以我不能去。

考查情态动词辨析。needn’t 不必；mustn't 禁止，不许；couldn't 不能；shouldn't 不应该。由“I had to work that evening”可知是“不能去”。故选C。