21． He will surely finish the job on time        he’s left to do it in his own way.

　　A． in that B．so long as C．in case     D．as far as

　　22． If this kind of fish becomes       , future generations may never taste it at all.

　　A．minimum B．short C．seldom  D．scarce

　　23． The bank is reported in the local newspaper        in broad daylight yesterday.

　　A．being robbed B．having been robbed

　　C．to have been robbed D．robbed

　　24． Agriculture was a step in human progress        which subsequently there was not anything comparable until our own machine age.

　　A．in B．for C．to        D．from

　　25． The same factors push wages and prices up together, the one        the other.

　　A．emphasizing B．reinforcing C．multiplying    D．increasing

　　26． No one had told Smith about        a lecture the following day.

　　A．there being B．there be C．there would be   D．there was

　　27． Operations which left patients        and in need of long periods of recovery time now leave them feeling relaxed and comfortable.

　　A．exhausted B．abandoned C．injured     D．deserted

　　28． I was halfway back to the cottage where my mother lived        Susan caught up with me.

　　A．when B．while C．until       D．though

　　29．        the temperature falling so rapidly, we couldn’t go on with the experiment.

　　A．Since B．For C．As         D．With

　　30． The bed has been        in the family. It was my great-grandmother’s originally.

　　A．handed out B．handed over

　　C．handed down                     D．handed round

　　31． By the time he arrives in Bejing, we        here for two days.

　　A．have been staying B．have stayed

　　C．shall stay D．will have stayed

　　32． According to the American federal government, residents of Hawaii have the longest life        : 77.2 years.

　　A．scope B．rank C．span        D．scale

　　33． The millions of calculations involved, had they been done by hand,        all practical value by the time they were finished.

　　A．had lost B．would lose

　　C．would have lost D．should have lost

　　34． As a public relations officer, he is said        some very influential people.

　　A．to have been knowing B．to be knowing

　　C．to have known D．to know

　　35． Our hopes        and fell in the same instant.

　　A．aroused B．arose C．raised      D．rose

　　36． With the development in science and technology man can make various flowers        before their time.

　　A．be bloomed B．blooming C．bloom    D．bloomed

　　37． A season ticket        the holder to make as many journeys as he wishes within the stated period of time.

　　A．grants B．promises C．entitles    D．presents

　　38．       in the office had made a mistake, and the firm regretted causing the customer inconvenience.

　　A．Some B．Anyone C．One       D．Someone

　　39． In recent years much more emphasis has been put        developing the students’ productive skills.

　　A．over B．onto C．in        D．on

　　40． Only a selected number of landladies in the neighborhood have been allowed by the university to take in        .

　　A．residents B．inhabitants C．lodgers    D．settlers

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