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495.Unfortunately, when 1 got to her flat, she __________，so we had only time for a few words.
A.just left
B.had just left
C.has just left
D.was just leaving
496.Mr.White works with an import and export company,bu he __________ for this industrial fair,since he is on leave.
A.has worked
B.works
C.has been working
D.is working
