Preposition Exercise 06

1 They were already waiting _____ the gate when I got there.
2. Jane will meet her boy friend _____ Christmas.
3 Don't shout _____ me.
4 He is an expert _____ troubleshooting.
5. I woke _____ the sound of the bell.
6 He is working hard _____ this thesis.
7 They sold the cloth _____ a dollar a yard.