What I learn about this violence is ________ it has caused at least three deaths. A. whether B. that...
2022-08-25 11:54:35 48次 广东省汕头市2018-2019学年高一下学期第一次月考（含听力）英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
What I learn about this violence is ________ it has caused at least three deaths.
A. whether B. that
C. what D. when
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