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科目： 來源：同步題 題型：單選題

Ever since the Greens moved to the country a year ago, they________better health.
[     ]
A. are enjoying  
B. have been enjoying
C. could have enjoyed  
D. had enjoyed

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科目： 來源：同步題 題型：單選題

The little boy________in the mud all morning.No wonder he is dirty from head to foot.
[     ]
A. has played  
B. is playing
C. has been playing  
D. was playing

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科目： 來源：陜西省同步題 題型：單選題

I ________ glasses since I was in primary school and I hate them. They make me look like a bookworm.
[      ]
A. have worn  
B. have been wearing
C. have been worn  
D. was wearing

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科目： 來源：同步題 題型：單選題

He________English since he graduated from college and he is now even more interested in teaching it.
[     ]
A. taught    
B. was teaching
C. has been teaching  
D. had taught

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科目： 來源：同步題 題型：單選題

-Hi，Tracy，you look tired.
-I________the living room for three hours.
[     ]
A．paint    
B．had painted
C．was painting  
D．have been painting

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科目： 來源：同步題 題型：單選題

The little boy ________  in the mud all the morning. No wonder he is dirty from head to foot.
[     ]
A．has played  
B．is playing
C．has been playing  
D．was playing

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科目： 來源：同步題 題型：單選題

-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

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科目： 來源：同步題 題型：單選題

I have to see the doctor because I ________ a lot lately.
[     ]
A. have been coughing  
B. had coughed
C. coughed  
D. cough

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科目： 來源：同步題 題型：單選題

Joseph ________ to evening classes since last month, but he still can't say "What's your name?" in
Russian.

[     ]
A. has been going  
B. went
C. goes  
D. has gone

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科目： 來源：同步題 題型：單選題

—Those scientists invented a robot to care for kids!
—It's not surprising. They ________ wonders all the time.
[     ]
A. worked
B. were working
C. work
D. have been working

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