TheChinesestudentsasked________

发布时间：2020-07-28 00:08:55

The Chinese students asked ________ to improve the oral English.A.that it was easyB.if that was easyC.whether it was hardD.when was it hard

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C解析间接引语作ask的宾语从句，用if或whether；it作从句中形式主语，代替不定式．
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