There( )用适当的情态动词be someone in the office.The light is still

问题描述:

There( )用适当的情态动词be someone in the office.The light is still on in it.
1个回答 分类:英语 2014-09-22

问题解答:

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填must,表示一定,因为后面说了灯还亮着,说明办公室里一定还有人
 
 
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