—Can you tell me if Tom has finished his homework? —I've no idea. He ________ it this morning.
A.has being doing
B.had done
C.is doing
D.was doing
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◎ 知识点
根据魔方格专家分析,试题“—Can you tell me if Tom has finished his homework?—I've no idea. He ________ it this morning.A.has being doingB.had doneC.is doingD.was doing…”主要考查了你对 【过去进行时】,【过去进行时的被动语态】 等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。
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