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- 11—I have got a headache. —No wonder. You ________ in front of that computer too long.
A.work
B.are working
C.worked
D.have been working
开始考试练习点击查看答案 - 12Tom ________ in the library every night over the last three months.
A.works
B.worked
C.has been working
D.had been working
开始考试练习点击查看答案 - 13Look at the sweat on her face. She________the house since she got up this morning.
A.is cleaning
B.has been cleaned
C.was cleaning
D.has been cleaning
开始考试练习点击查看答案 - 14—Tony, come down and help me with the heavy box! —Come on! I _____ all day long. Get Peter to do that!
A.work
B.had been working
C.had worked
D.have been working
开始考试练习点击查看答案 - 15-That's the third time he's won the award in this field.-Yes. He ________ his maximum potential in the past decade.
A.explored
B.is exploring
C.has been exploring
D.has explored
开始考试练习点击查看答案 - 16Excuse me,Marcia,a reporter from Vanity Fair_________all day. Could you speak to her now?
A.phones
B.has phoned
C.has been phoning
D.phoned
开始考试练习点击查看答案 - 17The development of China's economy ________ since the 80s of last century.
A.has been accelerating
B.had accelerated
C.is accelerating
D.accelerated
开始考试练习点击查看答案 - 18Excuse me, Marcia, a reporter from Vanity Fair ____ all day. Could you speak to her now?
A.phones
B.has phoned
C.has been phoning
D.phoned
开始考试练习点击查看答案 - 19By the time you arrive in London, we in Europe for two weeks.
A.shall stay
B.have stayed
C.will have stayed
D.have been staying
开始考试练习点击查看答案 - 20She ought to stop reading;she has a headache because she________for too long.
A.has been reading
B.had read
C.is reading
D.read
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