64.我们已研制出了能大规模提高生产的方法。

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

31. Can you get the work _____ on time?

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

（ ）52. As an excellent basketball player, Jonathan plays an active part in all of the school’s activities. He thinks sports can help people keep healthy and everybody should take part. He wishes to arrange some activities that everybody could join in.  

（ ）54. Jennifer is a kind and helpful girl who is always willing to offer a helping hand to whoever needs it. As a student, she knows that many of her schoolmates need help and care. She wishes that she could do something for them.

46. Meaning of stress: Stress is a feeling if you______ about something that you cannot solve.

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

30. This pair of shoes_____ my brother’s. It’s too small for him. 

48. (2) Bad stress: Stress can last long if you are___ to deal with your problems. It can actually let you do worse in your daily life.

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

45. What is the passage mainly about?