64. Such knowledge is still useful _____ _____ _____ ( apply )similar situations in other countries.

63. Our environment is getting worse. ________ ____ _____(因此) many endangered species are now dying out.

62. Would you please _____ _____ ____my flat for a visit? (来)

61.I was worried about whether I would ____ _____ ____ ______.(失业)

60. Economic crisis has _____ (影响)its tourism, which is the major industry in this country.

58.. He has a gift for _______(计算) and likes to solve any mathematical　 problem.

59　 _____(个人观点), I think　 good altitude　 means　 commitment , professionalism, teamwork spirit and strong will..

57. The room ____(充当) as a small reception hall for all the applicants.

56. Amber has a beautiful yellow-brown colou and it easily melts when ____(加热).

55. what should be done is to be done ____(适当)

54. I remembered the beatings and the ____ (残酷)of the guards when I was in prison.