Today is Wednesday. He be at home. He be at school.
A. can't; can
B. can't; must
C. mustn't; must
D. mustn't; can
网友回答
A. can't; can
(答案→)B. can't; must
C. mustn't; must
D. mustn't; can
解析：can能，表示某种本能的客观的能力；must必须，一定；can’t不能，不可能，can的否定式；must’t禁止。句意：今天是星期三。不可能在家。他一定在学校。