58.You should go to the dentist to check your (牙齒) every six months.

57.There’s a lot of happiness in life if we face it with a (微笑) .

56.She hopes to be an excellent (舞蹈家) like Yang Liping.

55.It’s polite to (等待) in line before getting on the bus.

53. Some students in western areas are too (貧窮的) to afford pens and notebooks.

52.—What do you think of the block you live in?

   —I'm not satisfied. The loud noise from the square always (打擾，擾亂) me a lot.

51.Whether Siheyuan in Beijing should be kept or not is under hot (討論) .

50.Rome was not (建造) in a day,so you should work hard to make progress.

49.We are pleased with the good (服務) of Yangzhou Restaurant。