__________________ (直到河里的鱼全死光了村民们才意识到) how serious the pollution was. Not until

游客2023-09-07  20

问题 __________________ (直到河里的鱼全死光了村民们才意识到) how serious the pollution was.

选项

答案 Not until all the fish died in the river did the villagers realize

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