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Hi

When I was in my twenties I was teaching in/at primary school.

I was giving private lessons in/at my home.

I also taught in/at high school.

--- Can I use either "in" or "at" in the above sentences?
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NewguestCan I use either "in" or "at" in the above sentences?
Yes. I would add a in the first and last sentences: in/at a primary school in/at a high school

CJ
Comments  
Thanks CJ!