Theresa May asked Russian officials to explain ________ they were responsible for the chemical attac...
2022-09-24 04:29:18 169次 江苏省2017-2018学年高一下学期期末考试英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Theresa May asked Russian officials to explain ________ they were responsible for the chemical attack in Salisbury, England.
A. if B. that
C. which D. where
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