There are a lot of black clouds.It m------- rain soon

问题描述:

There are a lot of black clouds.It m_______ rain soon
1个回答 分类:英语 2014-11-02

问题解答:

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must
天空布满了乌云.雨不久就会来了.
表示对未来的猜测,用情态动词.
 
 
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