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-- When ----- you ----- your homework?--I had finished it be

学习时间:2026-10-13 01:25:00 阅读：968

-- When _____ you _____ your homework?--I had finished it befor he_____ back.A.have;finished;came B.have;finished;was comingC.did;finish;came C.did finish;was coming

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2026-10-13 01:25:00

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Cwhen不能与完成时连用,故排除A与B,第二空根据前面是过去完成时,从句应该是一般过去时

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2026-10-13 01:25:00
Cwhen不能与完成时连用,故排除A与B,第二空根据前面是过去完成时,从句应该是一般过去时

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