Question

Oh, look at you---you are trembling! You must feel cold now. In fact, you __________ in person. You can contact us by phone next time.

A．didn’t need to come	B．needn’t come
C．needn’t have come	D．don’t need come

Answer 1

C

试题分析：needn’t have done过去没必要做某事，而做了。句意：看看你---你在发抖！你一定感觉冷了吧。事实上，你没有必要亲自来，下次你可以打电话和我联系。故选C。
点评：本题难度适中。情态动词的完成式是高中阶段的重难点之一，需要考生熟记它们的用法，在各类考试中经常出现，它主要用于表示对过去情况进行推测或责备等。
即学即练：He didn't do well in the exam. He_____ hard at his lessons.
A. must have worked      B. ought to have worked
C. would have worked     D. has worked
解析：B。