56.众所周知，肺癌至少部分是由于吸烟过多而引起的。

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.  

17. My boss ordered that the legal documents______to him before lunch.

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

12.根据原文"People who are nearsighted can only see things that are very close to their eyes."可知近视眼只能看清近处的事物，与题干不符。故错误。

61.鉴于以上所述，我认为大学生有必要参加社会实践。

32. Never _____ such a splendid building, I’m shocked. 

59.应对焦虑情绪的最好办法可能就是倾诉了，虽然有时未必有倾听者。

40. Which of the following has the same meaning with the last two sentences?

（ ）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.

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