She ____ on her homework in her study now . A．must workB．can workC．must have wor

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She ____ on her homework in her study now . A．must workB．can workC．must have wor

题型：不详难度：来源：
She ____ on her homework in her study now .
A．must workB．can workC．must have workedD．must be working

答案
D。
解析
对正在发生的事进行推测。
举一反三
You ____ him . He will come to realize it some day .
A．needn""t punishB．should have punishedC．needn""t have punishedD．wouldn""t punish

题型：不详难度：| 查看答案
You ____ the meeting yesterday now that you were busy .
A．needn""t have come toB．needn""t come toC．didn""t have toD．don""t need to come to

题型：不详难度：| 查看答案
— ____ I know your name ?
— Sorry , you ____ .
A．May ; mayn""tB．May ; can""tC．Must ; mustn""tD．Need ; must

题型：不详难度：| 查看答案
— ____ . I""ll be as quiet as a mouse .
A．Yes , I won""tB．No , I won""tC．No , I""llD．Yes , I will

题型：不详难度：| 查看答案
If you ____ there for a moment , I""ll tell the manager that you have come .
A．waitB．will waitC．shall waitD．waited

题型：不详难度：| 查看答案
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