Put at, in, on 1. i met ann the way home. 2. there were not many people party. 3. the office is the first floor. 4. i read the accident the newspaper. 5. charlie is the hospital. he is going to have an operation tomorrow. 6. helen is studying law in the university. 7. there were many people the concert last night.
1. on
2. at
3. on
4. in
5. in
7. at