It is hard to say what kind of person he is. Sometimes he is very friendly; at other times he ___ be...
2023-02-07 02:42:04 76次 20102011学年北京东城区高三下学期第二次联考英语卷 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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