优优班--学霸训练营 > 知识点挑题
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            • 1. Grandma ____________ (clean) up the kitchen when I got home yesterday.
            • 2. By the end of last term,Stephen ______ computer science in a university for two years.(  )
              A.hasn’t studied
              B.doesn’t study
              C.will study
              D.had studied
            • 3. -Why was he late for school yesterday?
              -He overslept.By the time he got to the bus stop,the bus _________ already _________.(  )
              A.was,leaving
              B.has,left
              C.would,leave
              D.had,left
            • 4. By the end of last year.Steve          computer science in a university for two years.(  )
              A.studies
              B.has studied
              C.had studied
              D.is studying
            • 5. When we got to the library,Mary_____there.
              A.has left
              B.had left
              C.leaves
              D.left
            • 6. The train ______ when I ______ to the station.(  )
              A.were left,were getting
              B.had left,got
              C.had been away,got
              D.left,got
            • 7. By the time I got back to school,the bell______.(  )
              A.rang
              B.has rung
              C.had rung
            • 8. ---I ____my homework at the time you came.
              ---But I ______outside for two hours before.I came in.(  )
              A.was doing,had waited
              B.had done,had waited
              C.did,waited
              D.have done,have waited
            • 9. You said that Zhijin cave is very beautiful._______ you ______ there?(  )
              A.Have…gone
              B.Have…been
              C.Have…gone to
              D.Have…been to
            • 10. When I got to school,Amy _____his homework.(  )
              A.had invented
              B.had finished
              C.had developed
              D.had rushed
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