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35.     worried the doctors most was      they could find the cause of the disease.

    A.What; how      B.That; that       C.What; what     D.How; what

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34.-Can I use your computer now?

   -     . It doesn’t work.

    A.That’ s all right   B.You’re welcome  C.I’m afraid not    D.It doesn’t matter

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33.If you    let me pay for the bill today, then at least allow me to drive you home.

    A.shouldn’t       B.needn’t         C.won’t         D.mustn’t

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32.Because of   high demand for Type AB blood,     supplies of it in blood banks are usually limited.

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

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31.-I wonder why Jackson was absent from yesterday’s conference.

   -He must have been ill,     ?

    A.isn’t he        B.wasn’t he       C.didn’t he       D.mustn’t he

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30.      I enjoy the book with some nice pictures, I don’t have enough money to buy it.

    A.Since          B.While          C.As            D.If

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29.The mountain villagers,    had been damaged by the big flood, were given help by both the government and the Red Cross.

    A.all whose homes                  B.all of whose homes

    C.all their homes                   D.all of their homes

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28.The car ran into a crowd of middle school students,     to hospital immediately.

    A.two of whom sent                                B.two of them sent

    C.two of whom are sent              D.two of them sending

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27.No one     the building without the permission of the police.

    A.to leave        B.is about to leave  C.leaves         D.is to leave

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26.The engine of the ship suddenly failed and then came a big storm, which     the helplessness of the crew at sea.

    A.resulted from    B.added to        C.turned out      D.brought about

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