Choose the correct prepositions (in,on ,at)
2. He is never late. He always comes ________ time.
3. How many students are ________ your class?
4. The teacher wrote something ________ the board.
5. Many people work ________ this building.
6. I will meet you ________ 7:00 PM.
7. Let's meet ________ Wednesday.
8. I am going to Japan ________ seven days.
9. I met John ________ my friend's party.
10. She was sitting ________ her car.