优优班--学霸训练营 > 知识点挑题
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            • 1.
              -Do you have Betty"s phone number?
              -Yes.Otherwise,I ______able to reach her yesterday.(  )
              A.hadn"t been
              B.wouldn"t have been
              C.weren"t
              D.wouldn"t be
            • 2.
              If the new safety system _______ to use,the accident would never have happened.(  )
              A.had been put
              B.were put
              C.should be put
              D.would be put
            • 3.
              _____ not for the support of the teachers,the student could not overcome her difficulty.(  )
              A.It were
              B.Wereit
              C.It was
              D.Was it
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