AT, IN & ON in phrases expressing location

I got my first taste of performing when I was just six, ____ primary school.

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______ the theatre you have a live audience in front of you.

• At

• In

• On

When I leave school, I definitely want to pursue a career as an actor ______ stage, TV, film or radio.

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• on

I'm planning to apply to drama school _______ London.

• in

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My brother used to be into acting too, but now he's ______ university and has given it up completely.

• in

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Every morning, we got up early and went to walk _____ the mountains.

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Every year, many people are injured ____ the roads because of bad driving.

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I am studying English _____ school, and a spell in your country would be a great chance for me to improve.

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• in

I think that your cinema is the best _____ the city.

• on

• at

• in

I was alone ______ home, my parents were ______ a party and my sister was ______ a friend's house.

• at, in, in

• at, at, at

• at, in, on

• in, at, in