0  274306  274314  274320  274324  274330  274332  274336  274342  274344  274350  274356  274360  274362  274366  274372  274374  274380  274384  274386  274390  274392  274396  274398  274400  274401  274402  274404  274405  274406  274408  274410  274414  274416  274420  274422  274426  274432  274434  274440  274444  274446  274450  274456  274462  274464  274470  274474  274476  274482  274486  274492  274500  447090 

32.Living in the desert involves a lot of problems,    water shortage is the worst.

    A.of which       B.when          C.of whose       D.Which

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31.Only when you have obtained enough data      come to a sound conclusion.

    A.can you        B.you can        C.would you      D.you would

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30.Lessons    easily are soon forgotten.

    A.1earn          B.learned         C.to learn        D.learning

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29.If the building project     by the end of this month is delayed,the construction company

    will be fined.

    A.being completed B.completed       C.to be completed   D. completing

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28.I usually do the washing up and leave the cooking to my wife,     she’s a better cook   than me.

A.unless         B.as            C.even though     D.in case

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27.Many new workers    and in six month they will be sent to build a new railway.

    A.are being trained  B.are training     C.will train        D.will be trained

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26.-Oh, I     your camera. Is it all right if I bring it to you tomorrow?

    -All right.

    A.forget          B.have forgotten    C.forgot         D.had forgotten

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25.Was it because she was ill    she didn’t go to attend the meeting?

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

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24.The machine has been used for several years. It needs    .

    A.to repair        B.repaired        C.repair          D.repairing

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23.Be quiet    you will wake the whole house!

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

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