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35.The teacher explained the instructions     so that students could do the experiment accurately.

    A.in reality        B.in vain         C.in detail        D.at random

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34.The new evidence has     the story of the first witness.

    A.confirmed      B.informed       C.considered      D.confused

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33.Every country concerns food safety systems. But there are key areas     China can focus on improvements.

    A.which         B.where         C.why           D.when

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32.The car burns more fuel, but     all things into account, it is still a good car.

    A.taking          B.having taken     C.taken          D.to take

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31.Confidence and efforts are     the international community needs now to counter the on-going financial crisis.

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

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