Fill in each blank with a suitable preposition:
1. Your father is very kind _______ David.
2. Hurry or you will be late _______ school.
3. Were they present _______ the meeting?
4. She was confused_______ the dates.
5. His book is different _______ mine.
6. Your plan is similar _______ his.
7. The boy is afraid _______ snakes.
8. She is accustomed _______ getting up early.
9. He was successful _______ his job.
10. That student is very quick _______ mathematics.
11. Iraq is rich _______ oil.
12. Are you aware _______ the time?
13. Are you acquainted _______ this man?
14. He has been absent _______ school lately.
15. They are interested _______ buying a new house.
16. Smoking is harmful _______ our health.
17. She is serious _______ learning to be a doctor.
18. I couldn’t believe what he said. It was contrary _______ his thought.
19. Our study is very important _______ our future and useful _______ our country.
20. Don’t give up your hope. Be confident _______ yourself.