37. How did Li Ziqi make a living?

48. Please tell me the reason that he refused to follow my advice.

12. It is impossible to finish the task ______.

41. Who thinks multi-tasking can help Rose concentrate?

7. Some students have difficulty _____ English, so they often ask their English teacher for help.

36. From the first paragraph we can infer

35. The organizer of the activities above is .

11. Not until the motorbike looked almost new ______ repairing and cleaning it.

16.

15. He ought to have come by now. I ______ that some accident has delayed him.

6. How much _____ she looked without her glasses!

18.