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I didn`t know ---------- because it was dark.

学习时间:2026-11-10 11:26:28 阅读：4258

I didn`t know __________ because it was dark.A)what`s happenedB)what was happenedC)what had happenedD)happened what选什么?为什么?

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俏皮的自行车

怕黑的冬天

2026-11-10 11:26:28

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c1。happen没有被动语态 B错误2。前面有did,所以happen用过去的过去。选c

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干净的故事
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2026-11-10 11:26:28
c1。happen没有被动语态 B错误2。前面有did,所以happen用过去的过去。选c

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