Mary be in Paris . I saw her a few minutes ago . A. mustnt B. shouldnt C. cant D.

问题补充：

Mary be in Paris . I saw her a few minutes ago .

A. mustn\t

B. shouldn\t

C. can\t

D. may not

答案：

A. mustn\t

B. shouldn\t

(答案→)C. can\t

D. may not

解析：can 表示对现在事情的推测，用于否定句或疑问句。