New technologies ______ in the building of the plane. A. had been used B. have used C. have be used...
2023-02-11 01:02:12 202次 湖南省长沙市一中2010年上学期高一期末考试 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
New
technologies ______ in the building of the plane.
A. had been used B.
have used C.
have be used D.
were used
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