问题
选择题
It's 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
答案
答案：A
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It's 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
答案：A
