It is hard to say what kind of person he
题型:选择题
问题:
It is hard to say what kind of person he is. Sometimes he is very friendly; at other times he ___ be
very cold. [ ]
A. can
B. must
C. will
D. shall
It is hard to say what kind of person he is. Sometimes he is very friendly; at other times he ___ be
very cold. [ ]
A. can
B. must
C. will
D. shall