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科目： 來源：不詳 題型：單選題

----- Can I go back home now? ----- You______ to leave until you ______ your work.
A．won’t allow; finishB．won’t be allowed; will finish
C．won’t be allowed; have finishedD．won’t allow; will finish

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科目： 來源：不詳 題型：單選題

With the help of high technology, many new substances（物質）______in the past years.
A．discoveredB．have discoveredC．had been discoveredD．have been discovered

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科目： 來源：不詳 題型：單選題

She said that I could use her car while mine _________________.
A．was repairedB．repairedC．was being repairedD．would be repaired

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科目： 來源：不詳 題型：單選題

. ---- Do you know our hometown at all?
---- No, this is the first time I ____ here.
A．wasB．have beenC．cameD．a(chǎn)m coming

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科目： 來源：不詳 題型：單選題

. ---- How long ____ at this job?
---- Since 1990.
A．were you employedB．have you been employed
C．had you been employedD．will you be employed

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科目： 來源：不詳 題型：單選題

– Why isn’t the recorder ready yet?
--- I’m sorry, sir. It ______ in the factory.
A．is being repairedB．is repairedC．has been repairedD．hasn’t repaired

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科目： 來源：不詳 題型：單選題

--When _________ the training course begin?
--Next Monday.
A．hasB．is going toC．doesD．did

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科目： 來源：不詳 題型：單選題

I ______ Mr White at that time, otherwise I wouldn’t have asked you for some information about him.
A．hadn’t knownB．didn’t knowC．don’t knowD．haven’t known

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科目： 來源：不詳 題型：單選題

It’s only six o’clock now; Little Tom should be up ,though, because he _____ for nine hours.
A．has been sleepingB．had been sleepingC．has sleptD．had slept

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科目： 來源：不詳 題型：單選題

—It’s only ten minutes’ walk; I could have got there on foot.
— Yes. A taxi _______ not at all necessary.
A．wasB．had beenC．has beenD．is

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