he needs ( ) his room.A 、to clean B.cleaning C.cleans D.clean

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heneeds()hisroom.A、tocleanB.cleaningC.cleansD.cleanheneeds()hisroom.A、tocleanB.cleaningC.cleansD.cle

he needs ( ) his room.A 、to clean B.cleaning C.cleans D.clean
he needs ( ) his room.A 、to clean B.cleaning C.cleans D.clean

he needs ( ) his room.A 、to clean B.cleaning C.cleans D.clean
A
need to do sth 需要做某事

B,need只能做及物动词,后必加N或者V-ing(动名词)

A
need用的第三人称单数可见是动词不是情态动词,后面接不定式

A

选A,这是固定语法,need to do something

A
need 有两种词性 当使役动词时 后面加不定式

need作助动词,一般在非肯定句中,后面用动词原形作主动词;
need作主动词,用在语气肯定的句子中,需要do系列作助动词,后面用不定分词作宾语。