I cant find Jane anywhere in the office building . Where she have gone ? A. must B. can

问题补充：

I can\t find Jane anywhere in the office building . Where she have gone ?

A. must

B. can

C. should

D. need

答案：

A. must

(答案→)B. can

C. should

D. need

解析：“can / could +不定式的完成式”，用于否定句或疑问句，表示对过去发生的行为怀疑、不相信或可能性的推测。