Tom,where is your father I'm not sure .He _____ in his office

问题描述:

Tom,where is your father I'm not sure .He _____ in his office
A is B may be C maybe D may

B
这里的may 表可能,be 表状态,在
因为前面已表了不确定,所以A不可能,Maybe/may只表可能.