—He _____ be in the classroom, I think.
题型:选择题
问题:
—He _____ be in the classroom, I think.
—No, he ___ be in the classroom. I saw him go home a minute ago.[ ]
A. can; may not
B. must; may not
C. may; can't
D. may; mustn't
—He _____ be in the classroom, I think.
—No, he ___ be in the classroom. I saw him go home a minute ago.[ ]
A. can; may not
B. must; may not
C. may; can't
D. may; mustn't