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35.For some time now, world leaders _____ out the necessity for agreement on climate change, the world economy and African development.

    A.had been pointing                 B.have been pointing

    C.were pointing                    D.pointed

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34.Though it is 30 years ____ we last met, I still remember the scene _____ we got separated on a rainy day.

    A.before; where                    B.since; where                

    C.before; which                    D.since; when

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33.The fellow left without a word as if ________.

    A.never to return                   B.never returning

    C.he had never returned              D.he would never be returning

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32.His sacrifices for the country were never officially _____, which made all of us feel discouraged.

    A.acknowledged                   B.appealed                           C.associated         D.approved

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31.What a pity! I missed meeting my friend at the airport because my car was _____ in the traffic jam.

    A.broken up       B.held up         C.kept back       D.kept up

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30.--- I'd have made a phone call to you, ___________ your telephone number.

--- That’s all right.What was up then?

    A.if I know                       B.had I forgotten  

    C.if I hadn’t remembered             D.but I forgot

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29.The cousins are alike in age, but _____ they are as different as day and night.

    A.anyhow        B.besides         C.otherwise       D.moreover

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28.Is it a wonder that _____ little cells can store _____ much energy?

    A.such, so        B.so, much       C.so, so          D.such, such

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27.Not having worked out the problem, _____ leave the office.

    A.so he was not allowed to            B.and he didn’t want to

    C.the teacher couldn’t make him        D.he couldn’t free himself to

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26.----Why isn’t Cathy here yet?

--- She _________ to be picked up at the station.

    A.could wait                      B.must wait                  

    C.might be waiting                  D.can be waiting

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