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科目： 來源：不詳 題型：單選題

—Why? Where is the key to the meeting room? 
—Dear me! You ______ it in the taxi!
A．had never leftB．didn’t leaveC．never leftD．haven’t left

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科目： 來源：不詳 題型：單選題

The latest data put forward by the states suggested that the business ___ improving.
A．wasB．beC．beingD．should

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科目： 來源：不詳 題型：單選題

----How do you find our company?
----A little worried. We _________ ground as a leader in the field of IT with the others speeding up development.
A．have lostB．a(chǎn)re losingC．lostD．were losing

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科目： 來源：不詳 題型：單選題

—Did you know more about the mine accident?
—Oh, sorry, I had no idea. I ____the Rescue Center now.
A．will be phoningB．a(chǎn)m to phoneC．will phoneD．phone

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科目： 來源：不詳 題型：單選題

---Can I help you, sir? 
---Yes. I bought this radio here yesterday, but it _____.
A．didn't workB．wouldn't workC．can't workD．doesn't work

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科目： 來源：不詳 題型：單選題

—Do you regret not having gone abroad?
—Why should I? I ____as much, but I’m glad to devote myself to our motherland.
A．didn’t earnB．don’t earnC．hadn’t earnedD．haven’t earned

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科目： 來源：不詳 題型：單選題

－What a dry day!
－We _______ such dry weather for almost twenty days．
A．haveB．have hadC．have been havingD．have been had

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科目： 來源：不詳 題型：單選題

I_____ violin lessons every two weeks, but I think I ‘ll make it every week from next month.
A．a(chǎn)m havingB．have had
C．haveD．have been having

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科目： 來源：不詳 題型：單選題

Selecting a mobile phone for personal use is no easy task because technology __________ so rapidly.
A．is changingB．has changedC．will have changedD．will change

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科目： 來源：不詳 題型：單選題

All the preparations for the task ___________, and we’re ready to start.
A．completedB．completeC．had been completedD．have been completed

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