49. How to keep stress proper:(1) Have a balanced life.(2) Have and have healthy food.

60. 被邀请人的数目是50人，但是有很多人因为各种原因缺席了。

42. Which of the following is NOT true according to the passage?

25. —May I play the computer game tomorrow, Dad?—Certainly not, unless your homework _____ by then. 

34. —Tom, let’s hang out after school.  —Sorry. I have _____ Frank to work on the biology report with him. 

63.大家在生活中都能交到朋友，只是有人没有交到知心朋友。

26. —That man looks familiar. —Really? Have you forgotten _____ to him at David’s party?

66.Now colleges and universities are seeing a change in students’ lifestyle. More and more college students prefer to stay in the dormitory in their leisure time and become indoorsmen or indoorswomen. The Internet offers students many options to kill the spare time. Various on-campus services, from food delivery to laundry services, are fueling the culture of staying in dormitories. Some students argue that outdoor sports or social activities are no better than staying in the dormitory and playing on a computer. Irregular life and lack of physical exercise have become the health enemy of college students.

56.众所周知，肺癌至少部分是由于吸烟过多而引起的。

22. Mrs. Brown is supposed _____ for Italy last week. 

43. All the following are talked about in the passage EXCEPT

20. The new highway is almost _____ than the old one.