There is no doubt _____ China has made rapid progress in space exploration. A. whether B. that C. w...
2023-02-11 23:45:01 101次 2010年湖南省普通高中学业水平考试英语模拟试卷（三） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
There is no doubt _____ China has made rapid progress in space
exploration.
A.
whether B. that C.
which D. who
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