题目内容

Henry _____be at home because he phoned me from his office just now.
A．mustn’tB．can’tC．mayD．may not
B

试题分析：句意：Henry不可能在家因为刚才他从办公室给我打来了电话。表示不可能是用can’t,而mustn’t表示禁止，故选B.
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