Choose the best answers to complete the following sentences.
Question 1. Smoking is harmful _____ our health.
Question 2. We are present _____ the lecture yesterday.
Question 3. He is sad _____ his son’s laziness.
Question 4. We are proud _____ our people's heroic tradition.
Question 5. The air at the seaside is good _____ health.
Question 6. He was successful _____ his job.
Question 7. The book is divided _____ three parts.
Question 8. She has suffered _____ her heart attack.
Question 9. I'm interested _____ current events.
Question 10. My father insisted _____ building a new house.
Question 11. Teachers are responsible _____ their teaching.
Question 12. I have some tickets available _____ you.
Question 13. She is serious _____ learning to be a doctor.
Question 14. That singer has become very popular _____ the youth.
Question 15. Are you capable _____ doing that job?
Question 16. The streets are crowded _____ vehicles at the rush hour.
Question 17. Four-fifths of the world's computers use programs _____English.
Question 18. His book is different _____ mine.
Question 19. Iraq is rich _____ oil.
Question 20. Your profession is similar _____ mine.
Question 21. The beach is full _____ tourists in summer.
Question 22. She was confused _____ the dates.
Question 23. We are grateful _____ our teacher.
Question 24. I'm not acquainted _____ those flowers.
Question 25. I was absent _____ class before yesterday.
Question 26. We are ashamed _____ his behavior.
Question 27. Most children are ill-prepared _____ employment.
Question 28. English belongs _____ those who use it.
Question 29. The boy is afraid _____ snakes.
Question 30. Your words are contrary _____your acts.