1 at
2 on, at
3 at
4 in
5 in
6 in
7 on in
8 on
9 on
10 at
11 in
12 in at
13 in at
14 in
15 in
16 on
17 on
18 on
19 in on
20 on at in
Объяснение:
1 at
2 on, at
3 at
4 in
5 in
6 in
7 on in
8 on
9 on
10 at
11 in
12 in at
13 in at
14 in
15 in
16 on
17 on
18 on
19 in on
20 on at in
Объяснение: