24、Not until he failed in the examination _______ Cliff ______ the importance of careful preparation.

A．had; realized     B．did; realize C．was; realized    D．has; realized

23、Now that you’ve got so far with the work, you _________ finish it as well.

A．should                        B．have to                C．must                   D．might

22、Most of us like her, ___________ she can be annoying at times.

A．a(chǎn)s if         B．even though     C．so long     D．so that

21、Now in our country free medical treatment covers sickness of mind as well as _____ sickness.

A．normal      B．a(chǎn)verage     C．ordinary    D．regular

19、Johnson ______ for 5 years for political reasons when he was young.

A. was put in prison      B. was in the prison  C. out in prison   D. was in prison

18、The teenagers wonder what ______makes Jay a successful pop singer.

A. is it                B. is it that        C. it is       D. it is that

17、Mary was so ___ in appreciating the beautiful view that she didn't realize the weather was ______.

A. absorbing, frozen      B. absorbing, freezing   C. absorbed, frozen  D. absorbed, freezing

16、–Jinlin Hotel. Can I help you?

--Do you have a room ________ for this weekend?

A. sensitive                   B. present                     C. available                   D. absent

15、Speed of cars is measured ________kilometres per hour.

A. on                           B. in                      C. by                           D. to