________________, the experiment is sure to succeed. A. If carefully doing B. If carefully done C. I...
2022-10-30 11:55:55 143次 2014-2015学年湖南常德市高一下期中英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
________________, the experiment is sure to succeed.
A. If carefully doing B. If carefully done
C. If it done carefully D. It it doing carefully
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