Fill in: at, in, under, out of, on.

1. ... first, I thought he was joking but then I realized he meant it.
2. I’m afraid we have to walk up the stairs – the lift is ... order.
3. The team performs well ... pressure.
4. ... the end, she chose to go to Oberlin College.
5. "There's someone ... the phone for you." "What do they want?"