Hemustbeshy,_____he?A.mustB.mustn't

发布时间:2020-08-03 12:44:57

He must be shy, _____ he?A.mustB.mustn'tC.isD.isn't

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D解析本句中must be表示一种推测,在这种情况下,只能对其实义动词反问。
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