Because they had spent too many time considering the new contract, the students lost the opportunity to lease the apartment.

These televisions are all too expensive for we to buy at this time, but perhaps we will return later.

After she had bought himself a new automobile, she sold her bicycle.

5. The next important question we have to decide is when do we have to submit the proposal.

6. George has not completed the assignment yet, and Maria hasn't neither.

7. John decided to buy in the morning a new car, but in the afternoon he changed his mind.

8. Some of the plants in this store require very little care, but this one needs much more sunlight than the others ones.

9. After George had returned to his house, he was reading a book.

10. Many theories on conserving the purity of water has been proposed, but not one has been as widely accepted as this one.

11. The food that Mark is cooking in the kitchen is smelling delicious.

12. After John eaten dinner, he wrote several letters and went to bed.

13. The manager has finished working on the report last night, and now she will begin to write the other proposal.

14. Because Sam and Michelle had done all of the work theirselves, they were unwilling to give the results to Joan.

15. Daniel said that if he had to do another homework tonight, he would not be able to attend the concert.

16. After to take the medication, the patient became drowsy and more manageable.

17. We insist on you leaving the meeting before any further outbursts take place.

18. It has been a long time since we have talked to John, isn't it?

19. Henry objects to our buying this house without the approval of our attorney, and John does so.

20. Rita enjoyed to be able to meet several members of Congress during her vacation.

21. After being indicted for his part in a bank robbery, the reputed mobster decided find another attorney.

22. Harry's advisor persuaded his taking several courses which did not involve much knowledge of mathematics.

23. The only teachers who were required to attend the meeting were George, Betty, Jill, and me.

24. The work performed by these officers are not worth our paying them any longer.

25. The president went fishing after he has finished with the conferences.

26. Peter and Tom plays tennis every afternoon with Mary and me.

27. There were a time that I used to swim five laps every day, but now I do not have enough time.

28. He was drink a cup of coffee when the telephone rang.

29. We called yesterday our friends in Boston to tell them about the reunion that we are planning.

30. The children were playing last night outdoors when it began to rain very hard.

31. Those homework that your teacher assigned is due on Tuesday unless you have made prior arrangements to turn it in late.

32. Please give me a few coffee and some donuts if you have any left.

33. There are ten child’s playing in the yard near her house, but your child is not among them.

34. People respected George Washington because he was a honest man, and he turned out to be one of our greatest military leaders.

35. He isn't driving to the convention in March, and neither they are.

36. Catherine is studying law at the university, and so does John.

37. The company has so little money that it can't hardly operate anymore.

38. My cousin attends an university in the Midwest which specializes in astronomy.

39. The students were interested in take a field trip to The National History Museum, but they were not able to raise enough money.

40. Because they have moved away, they hardly never go to the beach anymore.

41. Us students would rather not attend night classes in the summer, but we often have to.

42. The policeman ordered the suspect to don't remove his hands from the hood of the car.

43. It was him who came running into the classroom with the news.

44. My brother doesn't care how much does the car cost because he is going to buy it anyway.

45. Mary and her sister studied biology last year, and so does Jean.

46. Pete had already saw that musical before he read the reviews about it.

47. There's a new Oriental restaurant in town, isn't it?

48. The government has decided voting on the resolution now rather than next month.

49. The professor is thinking to go to the conference on aerodynamics next month.

50. His father does not approve of him to go to the banquet without dressing formally.