1. The invention of computers enables people to live more comfortably and conveniently.

2. Don’t put your hand in your pocket.

3. Many traffic accidents occurred, which is the result of carelessness.

4. Last night it was too cold.

5. By comparison, nuclear energy has some distinctive advantages; for example, it is very clean and cheap.

6. Some people claim that fast food will replace traditional food.

7. Although he is very diligent at study, he still cannot pass the IELTS test.

8. I finished my homework and went out of the dormitory for a drink.

9. Though the Internet has many benefits, it also has some drawbacks.

10. If it is convenient to you, please give me a hand.

11. In the past, the price of milk was so high few people could afford it.

12. I left my watch at home.

13. Smoking is harmful to your health.

14. With help, we passed the IELTS test.

15. The two types of design have difference.

16. The fact is that he never offers help to others.

17. There are many people planning to study abroad.

18. Keeping pets is very popular among people who live in the big city.

19. If let alone at home, many old people are very likely to get into danger.

20. The society should pay more attention to the problems of education, poverty and disease; however, it seldom does so.

21. Today it is very hot, so I stay home.

22. When talking to the interviewer, I feel that my heart was beating very fast.

23. He gave the lovely lady the rose that he had bought for his wife.

24. Compared with the performance of Linda, Kent’s is far from perfect.

25. The big noise makes me unable to sleep well.

26. My suggestion is that more attention should be attached to the issue of youth drug abuse.

27. The price of milk is higher than that of rice.

28. The number of bikes will decline in ten years.

29. Smoking is harmful to one’s health. For one thing, it can cause lung cancer. For another, it can increase the chances of having a miscarriage if a woman is pregnant.

30. The reason why people choose to live in cities is that the city life is more convenient and colorful.

31. People think that developing space research will cost a huge sum of money.

32. Now going abroad becomes very easy.

33. The computer is a useful tool for students learning English.

34. Raising pets is good for old people and children.

35. Pets like dogs and cats accompany them.

36. Keeping a pet in the big city is not allowed.

37. Many medical reports reveal that keeping a pet can prevent heart disease and help patients to feel comfortable.

38.Discuss /complain about/enter the room/contact /

39.There arises a public debate as to whether we humans should carry out experiments on animals.

40. Pursuit of fashion costs much money and wastes much time.

41. However, other people suggest that college students doing the part-time job is quite beneficial.

42. Young people living and studying by themselves is of great significance to their future career.

43. On the whole, computer games have both advantages and disadvantages. But fairly speaking, everyone has to admit that the disadvantages far outweigh the advantages.

44. I find it difficult to work and study there due to my roommate’s inconsiderate behavior.

45. It is very difficult for me to write essays in English.

46. When one is over 70 years old, he is prone to danger if left alone at home.

47. I hope this letter would draw your attention and you will look into the case.

48. Last year saw a rapid rise in the volume of output.

49. A thief entered my room and some valuables in my room were stolen last night.

50. I would like a single room to live and study in.

51. I am sorry for my abrupt departure that day, for I received a telephone call that day asking me to return home immediately.

54.My sister and I like pets very much. Therefore we are strongly against the ban on pet-raising.

55. They may be very busy so that they can not spare some time for their aged parents.

56. The curve rose sharply in the past few days.

57. After three days’ meeting, we drew a conclusion that Tom is a dishonest man.