-----Is he in the office now?---- No,he ______ be there.I saw him in the library just nowA.won’tB.can’tC.needn’tD.mustn’t我想选A 但是错了

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-----Isheintheofficenow?----No,he______bethere.IsawhiminthelibraryjustnowA.won’tB.can’tC.needn’tD.mu

-----Is he in the office now?---- No,he ______ be there.I saw him in the library just nowA.won’tB.can’tC.needn’tD.mustn’t我想选A 但是错了
-----Is he in the office now?---- No,he ______ be there.I saw him in the library just now
A.won’t
B.can’t
C.needn’t
D.mustn’t
我想选A 但是错了

-----Is he in the office now?---- No,he ______ be there.I saw him in the library just nowA.won’tB.can’tC.needn’tD.mustn’t我想选A 但是错了
答案为B
表示确定的肯定猜测时用”must“,表示确定的否定猜测用”can't“,这两个词算是一组反义词,改否定句时经常会遇到.