题目内容

Today is Wednesday. He _______be at home. He ______ be at school.
A．can’t, canB．can’t, mustC．mustn’t, mustD．mustn’t, can
B
本题的含义是今天是星期三，是上学的时间，所以他在家的可能性应该是最小，故用can’t（不可能），在学校上学的可能性最大，故用must（一定），故本题选B.
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