国家开放大学 / 理工英语2
— Look, it be Mr. Green.
— It _ _ _ _ _ be him. He has gone to France.
A. must, can’t
B. can, mustn’t
C. can, may not
— It _ _ _ _ _ be him. He has gone to France.
A. must, can’t
B. can, mustn’t
C. can, may not
参考答案：