He is said a book on the history of Chinese tone bridge , but I don’t know if he has finished it. A...
2023-02-14 06:50:45 174次 云南省玉溪一中09-10学年高二下学期期中考试 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
He is said
a book on the history of Chinese tone bridge , but I don’t know if he
has finished it.
A. to have written B. to be writing C . having
writing D writing
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