问题补充:
You to the meeting this afternoon if you have something important to do.
A. needn’t to come
B. don’t need to come
C. needn’t coming
D. didn’t need coming
答案:
A. needn’t to come
(答案→)B. don’t need to come
C. needn’t coming
D. didn’t need coming
解析:句意:如果你有重要的事情要做,你不必参见今天下午的会议了。结合语境可知本句中need为行为动词,需要。故其否定形式要借助于助动词。结合语境可知本句描述的是客观性动作,故用一般现在时态,主语you是第二人称,故助动词用do,选B。