24、----What time do you start work?

---- _____________.

  A. It’s none of your business.        B. It varies.

  C. From 8 a.m. to 4 p.m.                 D. It doesn’t make any difference

23、Jack’s room always has the dusty smell of an apartment whose windows are　opened.

A．rarely                   B．generally             C．apparently           D．frequently

22、It was the training      he had as a young man     made him such a good engineer．

A．what；that    B．which；that    C．that；which    D．that；what

21、The society today offers the young generation more chances to           their talent and skills．

    A．give out    B．take in    C．show off    D．carry on

20、Several years had passed       I finally realized the true value of friendship．

    A．when    B．that    C．before     D．until

19、Do remember me to your parents，      ．

    A．will you    B．don’t you    C．do you    D．won’t you

18、Many parents feel that their child’s IQ is      determines how well they are going to do in their future life．

    A．what    B．that    C．which    D．where

17、When you finish your work，don’t forget to put the tools back where they      ．

    A．are    B．will be    C．were    D．had been

16、To some people life is enjoyable，while to     it is suffering．

    A．ones    B．others    C．those     D．another

15、The police tried to get some clues from the suspect，but he remained     ．

    A．silent    B．quiet    C．calm     D．secret