61..________quantities of water are being used nowadays with the rapid development of industry and agriculture.

A)Extreme B)Exclusive C)Extensive D)Excessive

62.To speed up the ______of letters, the Post Office introduced automatic sorting.

A)treatment B) transmission C)departure D)delivery

63.Politically these nations tend to be ______,with very high birth rates but poor education and very low levels of literacy.

A) unsteady B)unstable C)rational D)reluctant

64. The chairman was blamed for letting his secretary ________too much work last week.

A)take away B)take out C)take to D)take on

65.The London Marathon is a difficult race._______, thousands of runners participate every year.

A)Therefore B) Accordingly C)Nevertheless D )Furthermore

66. Some people believe that since oil is scarce, the ____of the motor industry is uncertain.

A) estimate B)terminal C)fate D)benefit

67. It is said in some parts of the world, goats, rather than cows, serve as a vital _____of milk.

A)storage B) source C)reserve D)resource

68. ______recent developments we do not think your scheme is practical.

A) In view of B) In favor of C)In case of D)In memory of

69. Within two days, the army fired more than two hundred rockets and missiles at military _____in the coastal city.

A)goals B)destinations C)targets D)aims

70. Jessica was ______from the warehouse to the accounting office, which was considered a promotion.

A)delivered B)transferred C)exchanged D)transformed 

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