You ()leave,do you?But they must leave now.A.needn't to B.don't need to C.both A and B.
为什么选择B
人气：430 ℃ 时间：2019-09-29 06:36:05
解答
1.need 既可以是实义动词也可以是情态动词,都表示“需要”
2.need 作为实义动词 need to do sth
3.need作为情态动词时,后面+动词原形,因此把A 排除,C也不行了
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