Heisn'tatschool.Ithinkhe______beill.A.canB.shallC.mustD.mustn't

发布时间：2020-08-06 20:51:03

He isn't at school. I think he ______ be ill.A.canB.shallC.mustD.mustn't

网友回答

C解析must一定(表示一种肯定猜测)句意：他没上学，我想他一定病了．
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