Question

Trees help us to live, don't they?
Look this sentence "Trees help us to live" Trees(S) help (v) to live (object or infinitive)
so why we used this tag question they?
I think verb help so we can used "do" but subject "trees" it is not person so we can used "it" as subject. so it will be___________ don't it? but it=3rd person so we can use doesn't it?
plz help me.

Answer 1

Answer:

without

Explanation:

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