1. If I __________ more attention to the lecture, I would know the answer now.

2. The package __________ by the time I got home yesterday.

3. He must __________ his keys at the office; he can't find them anywhere.

4. The woman __________ next to the manager is the new CEO.

5. I'm not used to __________ in such a hot and humid climate.

6. It is essential that every student __________ the assignment on time.

7. I __________ my eyes tested at the clinic tomorrow afternoon.

8. Hardly __________ the station when the train pulled out.

9. The bridge __________ since the earthquake occurred last year.

10. You __________ better see a doctor if that cough persists.

11. I'd rather you __________ so much noise while the baby is sleeping.

12. The suspect finally admitted __________ the document last year.

13. If I __________ you, I would take that opportunity immediately.

14. The criminal is reported __________ the country two days ago.

15. I suggest __________ a taxi if you want to get to the airport on time.

16. By next year, they __________ together for twenty years.

17. The cake __________ delicious when it is served warm.

18. Only after __________ the report did he leave the office.

19. I wish I __________ more about the job before I applied for it.

20. She was made __________ all the extra work as a punishment.

21. I __________ for my keys all morning, but they are still missing.

22. Neither my brother nor my parents __________ to the party tonight.

23. The film was __________ boring that we left before the end.

24. He denied __________ the money, but nobody believed him.

25. The new hospital __________ by the end of next year.

26. He was accused __________ breaking the company's safety rules.

27. The match was postponed __________ account of the heavy fog.

28. We reached the airport just __________ time to catch the flight.

29. She is very conscious __________ her health, so she exercises daily.

30. I met my old teacher __________ chance while I was on holiday.

31. The plane was forced to land because of a fault __________ the engine.

32. He is a specialist __________ modern European history.

33. The situation is now __________ control after the intervention.

34. I can't imagine __________ in such a cold climate all year round.

35. Don't hesitate __________ me if you need any further assistance.

36. Young children tend __________ very curious about everything.

37. He was caught __________ guard when the news broke.

38. I __________ English for three years before I took the exam.

39. You __________ have told me you were busy! I wouldn't have called.

40. The thief __________ by the police while climbing the fence.

41. Never before __________ such a complicated problem in my life.

42. I'd rather __________ coffee than tea, if you don't mind.

43. By next Christmas, I __________ for this company for five years.

44. The laptop __________ since I bought it last month.

45. Would you mind __________ the door? It's a bit cold.

46. I'm busy __________ my luggage for the trip tomorrow.

47. The more you practice, the __________ you will become at English.

48. He is looking forward to __________ his results next week.

49. The cake __________ by my sister yesterday afternoon.

50. I __________ an old school friend while I was in London.