Select the sentence that correctly uses commas in a non-restrictive phrase. A river, that is polluted, is unsafe for swimming. Polluted rivers, which can exist anywhere, are unsafe for swimming. When a river becomes polluted, it is no longer safe for swimming. However, rivers sometimes become polluted when nearby farms use too many poisons.

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25 December, 09:09

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Leonardo Tran · Answer 1

However, rivers sometimes become polluted when nearby farms use too many poisons. i believe it is that one