72.Before the end of the nineties, air pollution ______ a serious problem that endangers the health of the human race.

a. will be become b. will become c. will have become d. will have been become

73.The train ______ at eight tonight.

a. will be started b. will have started c. shall be started d. starts

74.We ______ an English evening tonight.

a. are being having b. are having c. will be had d. shall be had

75.They ______ for Beijing for practice.

a. are leaving b. are being left c. will have left d. will be left

76._____ me or aren’t you?

a. Will you help b. Shall you help c. Are you going to help d. Will you have helped

77.A new power station ______ there.

a. will be going to build b. is going to be built c. will be gone to build d. is gone to be built

78.______ a meeting this afternoon.

a.There going to be b. There will be going to be

b.There is going to be d. There will going to be

79.We ______ a new experiment this afternoon.

a.shall be to perform b. will be to perform c. are to be performed d. are to perform

80.The government _____ to approve the use of widespread surveillance when the Justice Department took objections.

a. is going b. had been c. was about d. is coming

81.You ought to _____ a test in physics the day before, I think.

a. have taken b. take c. be taken d. be taking

82.Kepler proved that the sun ______ the center of the solar system.

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