No conclusion _________ about the new product until the result of the experiment has been announced....
2022-11-24 14:23:52 132次 2015届河南省许昌市五校高二上期期末联考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
No conclusion _________ about the new product until the result of the experiment has been announced.
A. is drawn B. was drawn C. will be drawn D. has been drawn
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