Tolong bantu jawab , sekalian alasannya kenapa jawabannya itu.. Tlg yah

1. in
2. in
3. at
4. (you already answered)
5. (you already answered)
6. on
7. (you already answered)
8. on
9. at

im sorry if there are wrong answers but i tried my best, i hope this help you! :)