We must keep the air clean and never --------- (pollute,poll

学习 时间:2026-08-14 18:42:06 阅读:6976
We must keep the air clean and never _________ (pollute,polluting) it.

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精明的向日葵

花痴的服饰

2026-08-14 18:42:06

We must keep the air clean and never 【pollute】(pollute,polluting) it。因为前面有 must 后面跟动词原形

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  • 强健的期待
    回复
    2026-08-14 18:42:06

    We must keep the air clean and never 【pollute】(pollute,polluting) it。因为前面有 must 后面跟动词原形

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