11.There is much I enjoy about the changing seasons, but my favorite time is the ______ from fall to winter.

　　A) transmission

　　B) transformation

　　C) transition

　　D) transfer

　　12.I think we need to see an investment ______ before we make an expensive mistake.

　　A) guide

　　B) entrepreneur

　　C) consultant

　　D) assessor

　　13.The ______ on this apartment expires in a year's time.

　　A) treaty

　　B) lease

　　C) engagement

　　D) subsidy

　　14.The elderly Russians find it hard to live on their state ______.

　　A) pensions

　　B) earnings

　　C) salaries

　　D) donations

　　15.There is supposed to be a safety ______ which makes it impossible for trains to collide.

　　A) appliance

　　B) accessory

　　C) machine

　　D) mechanism

　　16.After four years in the same job his enthusiasm finally ______.

　　A) deteriorated

　　B) dispersed

　　C) dissipated

　　D) drained

　　17.No one can function properly if they are _______ of adequate sleep.

　　A) deprived

　　B) ripped

　　C) stripped

　　D) contrived

　　18.For years now, the people of that faraway country have been cruelly ______ by a dictator.

　　A) depressed

　　B) immersed

　　C) oppressed

　　D) cursed

　　19.Ever since the rise of industrialism, education has been ______ towards producing workers.

　　A) harnessed

　　B) hatched

　　C) motivated

　　D) geared

　　20.The prospect of increased prices has already ______ worries.

　　A) provoked

　　B) irritated

　　C) inspired

　　D) hoisted