He tried to drive back to his home before the flood passed through the village.问什么要用passed

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Hetriedtodrivebacktohishomebeforethefloodpassedthroughthevillage.问什么要用passedHetriedtodrivebacktohish

He tried to drive back to his home before the flood passed through the village.问什么要用passed
He tried to drive back to his home before the flood passed through the village.问什么要用passed

He tried to drive back to his home before the flood passed through the village.问什么要用passed
主句是过去的时态,用before连接的两个句子,前后时态要一致
还有个词就是since,这个连接的句子前后时态不一致,

句意为:他尽量在洪水穿过村庄之前赶回来。整个句子是过去式的时态背景。

tried说明整个语句是过去时态,before说明之后的部分(即the flood passed through the village)是过去时态的过去时,所以要用passed。

过去时态,当然要用pass的过去时passed。