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科目： 來源：不詳 題型：單選題

With the development of science, more new technology ______to the field of IT.
A．has introducedB．is being introducedC．is introducedD．was introduced

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科目： 來源：不詳 題型：單選題

When I got on the bus，I_____I had left my wallet at home．
A．was realizingB．realizedC．have realizedD．would realize

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科目： 來源：不詳 題型：單選題

She was surprised to find the fridge empty；the children _____ everything !
A．had been eating B．had eaten
C．have eatenD．have been eating

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科目： 來源：不詳 題型：單選題

The police _____ the lost boy everywhere when he suddenly turned up in a supermarket.
A．searchedB．searched forC．was searchingD．were searching for

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科目： 來源：不詳 題型：單選題

——-We had a good time in dancing at a disco, why didn't you go with us?
——-I ________ there, but my parents didn't let me go.
A．couldn't goB．failed to goC．hadn't gone D．would have gone

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科目： 來源：不詳 題型：單選題

The farm as well as its neighboring hills we once spent so much time ___ a new look recently.
A．on has takenB．has takenC．on having taking D．having taken

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科目： 來源：不詳 題型：單選題

— How do you find the oil price now?
— It _____ up all the time and no one knows when it will become stable.
A．had goneB．has been goingC．has goneD．had been going

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科目： 來源：不詳 題型：單選題

A trend_______ that 3D films will become more popular ever since the film Avatar hit the market.
A．has arisenB．a(chǎn)roseC．is arisingD．will arise

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科目： 來源：不詳 題型：單選題

Where were you at lunch time? I ________ a seat for you in the dining hall.
A．savedB．was savingC．had savedD．have saved

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科目： 來源：不詳 題型：單選題

—Have you ever visited the Water Cube?
—Yes. When I served as a volunteer in Beijing, I      it twice.
A．have visitedB．visited
C．had visitedD．had been visiting

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