If you want to do the experiment again, you had better be more careful ________ you made a mistake....
2023-02-12 15:28:55 134次 浙江省嘉兴一中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：
If you want to do the experiment again, you had better be more careful
________ you made a mistake.
A.
when B. why
C. where D. that
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