问题
选择题
— Tom, where is your father?
— I'm not sure. He ______ in his office. [ ]
A. is
B. may be
C. maybe
D. may
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— Tom, where is your father?
— I'm not sure. He ______ in his office. [ ]
A. is
B. may be
C. maybe
D. may
答案：B
