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when and why he came here ----- yet.

学习时间:2026-09-28 17:53:24 阅读：5458

when and why he came here _____ yet.A.is not knownB.are not knownC.has not known

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诚心的蜻蜓

2026-09-28 17:53:24

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When and why he came here 作为一个整体,谓语动词用单数形式。。句意:他何时和为何来这的原因还未知。!'选AAAAAAAA。

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2026-09-28 17:53:24
When and why he came here 作为一个整体,谓语动词用单数形式。。句意:他何时和为何来这的原因还未知。!'选AAAAAAAA。

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