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科目： 來(lái)源：不詳 題型：單選題


.______ the beginning of the 19th century did scientists know that all matter is made up of atoms.
A．AtB．ByC．Up toD．Not until

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______ exceptionally heavily might railway services be temporarily dislocated (擾亂).
A．If only it snowedB．Only in case it snowsC．Only were it to snowD．Only when snow

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. Little ______, with his pet dog taken away from him.
A．depressed Tom feltB．did Tom felt depressed
C．Tom felt depressedD．depressed did Tom feel

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. He put it firmly that in no case _______ give in to others on such matters.
A．he wouldB．would heC．will heD．he will

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Then ________ the Civil War.
A．did followB．does followC．followedD．following

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No sooner ________ at the airport than she was surrounded by the reporters.
A．had the star arrivedB．the star had arrived
C．has the star arrivedD．the star has arrived

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科目： 來(lái)源：不詳 題型：單選題


It has been widely accepted that only when the students take an active part in the class activities _______ the most effective.
A．teaching will beB．will teaching be
C．has teaching beenD．teaching has been

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科目： 來(lái)源：不詳 題型：單選題


— I told him not to play football in the street.
— ________. But he turned a deaf ear to me.
A．Neither did IB．So did I
C．No, he didn’tD．So I did

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Not only ____interested in a football but ____beginning to care about it.
A．the father is ,his family areB．.the father is , ishis family
C．is the father ,his family areD．is the father is ,his family is

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科目： 來(lái)源：不詳 題型：單選題


Only then, _____we ____that the trapped miners were in danger when the flood water dripped into the tunnels.
A．have; realizedB．did; realize
C．do; realizeD．had ; realized

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