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          【題目】Oil, exported from Iran to Europe, ______ by tankers. ( )
          A.used to be transported/have been built up
          B.used to being transported/have built up
          C.was used to be transported/had been built up
          D.was used to being transported/will be built up
          

			
          

			
          
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          【題目】______ careless, or you will make mistakes. ( )
          A.Be notB.Not beC.Don’tD.Don’t be
          

			
          

			
          
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          【題目】Elections ______ every four years and Congress meets once a year. ( )
          A.are taken placeB.are to be taken placeC.took placeD.take place
          

			
          

			
          
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          【題目】We have sometimes accidents on this line, but no accidents ______ since last winter. ( )
          A.occurB.have occurredC.have been occurringD.are occurring
          

			
          

			
          
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          【題目】I ______ swimming in the river and I always ______ to swim when I can. ( )
          A.am liking/ have goneB.am being liked/ am going
          C.like/ goD.have liked/ have been going
          

			
          

			
          
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          【題目】I ______ the incident as if it were yesterday. ( )
          A.am still to rememberB.have still been remembering
          C.am being still rememberedD.still remember
          

			
          

			
          
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          【題目】This is the first time the students ______ to Hyde Park. ( )
          A.have goneB.have been goneC.have been goingD.are being gone
          

			
          

			
          
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          【題目】My uncle, Sam, ______ manager of the firm. ( )
          A.has just madeB.is just being madeC.has just been madeD.is just made
          

			
          

			
          
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          【題目】Chinese married couple ______ red packets to children and the unmarried during the Chinese New Year. ( )
          A.giveB.have been givingC.are givingD.have given
          

			
          

			
          
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          【題目】“______ your best? It’s not satisfactory. I’m afraid you will have to do it again.” ( )
          A.Do you tryB.Have you triedC.Are you tryingD.Have you been trying
          

			
          

			
          
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