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31.Once again he failed to hand in his homework _____ he had been given enough time to do it.

    A.in case       B.as though      C.so that        D.even though

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30.They live on a busy road.There ______ be a lot of noise from the traffic.

    A.must         B.may         C.would        D.could

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29._____ the chapter four times, I finally understood the author's theory.

    A.Reading        B.Having read      C.To read        D.Read

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28.Ann ______ here any more.She left last month.

    A.won't work      B.doesn't work     C.hasn't worked    D.isn't working

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27.The conference aims to develop business and let people think about ______ they can have a

    positive influence on the planet.

    A.why          B.that         C.what          D.how

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26.-Can I ask you a few straightforward questions about yourself?

   -No problem.I like ______ when people are open and direct.

   A.that        B.this         C.it           D.them

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25.They went on well at first but eventually everything ______ they had worried about happened.

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

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24.You really need to go out and get some fresh air and sunshine.You ______ overworked

   during the last two weeks.

   A.have been     B.were         C.had been       D.would be

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23.-Hi, David, I heard you had an accident this morning.

    -Yes.Luckily, I hit the brakes in time ______ I would be injured badly.

   A.and        B.but          C.or          D.so

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22.Mike seldom asks ______ questions in class, but today he raised ______ fairly good one.

   A./; a         B.the; a         C./; the          D./; /

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