问题
选择题
—Is the man in blue our headmaster?
—It _____ be him. He has just left for Beijing. [ ]
A. must
B. may
C. can't
D. couldn't
答案
答案:C
—Is the man in blue our headmaster?
—It _____ be him. He has just left for Beijing. [ ]
A. must
B. may
C. can't
D. couldn't
答案:C