Put in in,at or on .помогите пожалуйста

Question

Put in in,at or on .помогите пожалуйста

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Answer 1

1 at
2 in
3 in
4on
5 at
6in
7 at, in
8 in
9 in
10 at, in , on
11 in
12 in
13 at
14 at
15 in