Why the explosion occurred was ____ the laboratory attendant had been careless. A. for B.because C. ...
2022-11-16 06:59:18 77次 2014-2015学年上海理工大学附属中学高二上期中英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Why the explosion occurred was ____ the laboratory attendant had been careless.
A. for B.because C. since D. that
本题链接：
