It is hard to say what kind of person he is．Sometimes he is very friendly; at other times he ___ be ...
2022-12-02 23:07:24 181次 2013-2014学年海南省三亚市高三上学期第二次月考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
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
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