[题目]-Where’s the old blue bag?- I’m not sure, but it be thrown away. It be somewhere in the house .I saw it yesterday.A. must ;must B. must; canC. can’t; must D. can’t; can 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】-Where’s the old blue bag?

- I’m not sure, but it ______ be thrown away. It be somewhere in the house .I saw it yesterday.

A. must ;must B. must; can

C. can’t; must D. can’t; can

【答案】C

【解析】

试题分析：句意：-这个旧的蓝色书包在哪里？-我不确定，但是它一定没有被扔掉，它一定是在房间的某个地方，我昨天还见到了。must 一定，表示推测，只用在肯定句中；can’t 不可能，用于否定句。根据句意可知选C。

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