Wedidn'tknowifhe________meifhe_

发布时间：2020-07-26 08:36:23

We didn't know if he ________ me if he ________ free.A.would help/would beB.would help/wasC.helped/would beD.helped/was

网友回答

B解析前一个if引导宾语从句，后者引导条件状语从句
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