It is important to know about the cultural differences that cause problems. A. must B. dare C. shall...
2022-12-04 01:29:37 27次 2013-2014学年北京市石景山区高三上学期期末考试英语试卷（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 important to know about the cultural differences
that cause problems.
A.
must B.
dare C.
shall D. may
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