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科目： 來源：不詳 題型：單選題

—Why do you look so worried?
—My Macbook Pro broke down and my paper _____unfinished since.
A．was leftB．has leftC．leftD．has been left

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科目： 來源：不詳 題型：單選題

—That must have been a terrifying experience.
—Yeah. I _____ in the damaged car, unable to move.
A．was stuckB．have been stuckC．a(chǎn)m stuckD．had been stuck

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科目： 來源：不詳 題型：單選題

---Do you know the timetable of the school bus?
---Sure, the first trip________ at 6:30 a.m. and usually continues until 4 p.m. on weekdays. 
A．will startB．startsC．is startingD．started

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科目： 來源：不詳 題型：單選題

The past two years ________ a sharp rise in oil price, which adds to the burden of auto transportation industry.   
A．witnessed B．has witnessed C．is witnessing D．witnesses

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科目： 來源：不詳 題型：單選題

Nowadays it is obvious that the Internet _______ our life rapidly.
A．would changeB．changedC．had changedD．is changing

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科目： 來源：不詳 題型：單選題

Ladies and gentlemen,please fasten your seat belts,the plane______.
A．takes offB．is taking offC．is going to take off D．is to take off

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科目： 來源：不詳 題型：單選題

The last thirty years _____ the greatest number of laws stopping our rights and progress,until today we have reached a stage ____ we have almost no rights at all.
A．saw;whichB．have seen;thatC．saw;whereD．have seen;where

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科目： 來源：不詳 題型：單選題

---We’d like a double room with a view , please.
---I’m sorry, but all double rooms with a sea view _____________already.
A．were reservedB．had been reserved
C．have been reservedD．have reserved

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科目： 來源：不詳 題型：單選題

Nowadays, we can obviously feel that the Net_______ our life rapidly.
A．had changedB．changedC．is changingD．was changing

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科目： 來源：不詳 題型：單選題

With the fast development of computer and Internet technologies, traditional printed books ______ by the growing popularity of online reading of e-books.
A．a(chǎn)re challengedB．have challenged
C．a(chǎn)re being challengedD．have been challenged

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