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You ______ to the meeting this afternoon if you have something important to do.
A.needn’t to comeB.don’t need to come
C.needn’t coming D.didn’t need coming
B

试题分析: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。
点评:“need”既可以作情态动词,也可以作实义动词,但是它们的用法不同。need”作为情态动词的用法1、need表示“需要”或“必须”,通常用于否定句和疑问句。2、在否定句中,可以用need的否定形式+不定式完成体。3、needn't后的不定式间或也能用进行式或被动语态。“need”作为实义动词时,通常用法是:人+need +to do ;物+need +doing ;物+need +to be done,另外,“need”后还可以直接跟名词。
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