Shedidn'tanswerthephone.She______beas

发布时间:2020-08-07 09:38:59

She didn't answer the phone.She ______ be asleep.A.couldn'tB.mustn’tC.mightD.had to

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C解析might也许; couldn't意为:不可能;  mustn’t意为:不可以/一定不; had to意为:不得不,必须.
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