Their answers are exactly the same. One of them ___ from the other. A. must copy B. must have copied...
2022-12-02 19:42:47 39次 2013-2014学年湖南省澧县一中益阳市一中桃源县一中高三上学期三校联考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Their answers are exactly the same. One of them ___
from the other.
A. must copy B. must have
copied C. should copy D. should have copied
本题链接：
