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单项选择 较易0.85 引用1 组卷342
Theresa May asked Russian officials to explain ________ they were responsible for the chemical attack in Salisbury, England.
A.ifB.that
C.whichD.where
17-18高一下·江苏泰州·期末
知识点:连接词whether/if引导宾语从句 答案解析 【答案】很抱歉,登录后才可免费查看答案和解析!