优优班--学霸训练营 > 知识点挑题
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            • 1.

              Susan had quit her well﹣paid job and ______as a volunteer in the neighborhood when I visited her last year.( )

              A.is working    
              B.was working 
              C.has worked   
              D.had worked
            • 2.
              I ________down to London when I suddenly found that I was on the wrong road.(  )
              A.was driving
              B.have driven
              C.would drive
              D.drove
            • 3.

              Jack _______in the lab when the power cut occurred.(  )

              A.works     
              B.has worked     
              C.was working   
              D.would work
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