4.

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

5.

（ ）53.Dan is interested in taking wildlife photographs and enjoys the kind of programme which gives him a chance to see a professional photographer at work.

8.

（ ）13. Glasses help people to remedy their eyes.

43. In the author’s opinion, _____. 

39. From the passage we can draw the conclusion that ______.

（ ）14. Mary is only in charge of all employees in the office.

（ ）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!

（ ）12. The company was set up 15 years ago.

30. Scientists have obtained more evidence ______ plastic is finding its way into the human body.