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

发布时间：2020-08-16 05:56:16

She didn't answer the phone.She      be asleep.
A. couldn't
B. mustn’t
C. might
D. had to

网友回答

A. couldn't
B. mustn’t
(答案→)C. might
D. had to
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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