:英语动词时态用法的详解

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  Ａ.  already           Ｂ.never            Ｃ.ever               Ｄ. still
  例2.  Have  you  met  Mr  Li ______？
  Ａ.  just          Ｂ.  ago        Ｃ.before       Ｄ.  a moment ago
  例3.  The famous writer _____ one new book in the past two year .
  Ａ. is  writing    Ｂ.was  writing        Ｃ.wrote       Ｄ.has  written
  例4.—Our country  ______ a lot so far .
  —Yes . I hope it will be even ______ .
  Ａ. has  changed ; well                   Ｂ.  changed ; good
  Ｃ. has  changed ; better                  Ｄ.  changed ; better
  例5.  Zhao Lan ______already  ______in this school for two years .
  Ａ. was ; studying                   Ｂ. will ; study
  Ｃ. has ; studied                     Ｄ. are ; studying