3.

31. Many businesses started up by college students have ______ thanks to the comfortable climate for business creation.

46.The ______ of bacteria causes body odor.

45. Which of the following is WRONG according to the passage?

25. I keep the picture where I can see it every day, _____ reminds me of the days in my hometown.

44. What can we learn from the passage?

35. Learning a language is about_____,so in order to grasp a language,it‘s wise to study on a daily basis.

7.

（ ）52. Bella enjoys eating out but can’t afford to spend very much at the moment as she is saving for a holiday. She has never learnt how to cook, so now might be quite a good time to find out!

57.众所周知，贸易和专门化相辅相成，使我们每个人能使用更多的产品。

38.The underlined word “imitate” has a similar meaning to ______.

63.我们真希望你昨晚没那么多工作要做,因为我们都知道你肯定会在晚会.上玩得很开心。