-Haven't you finished your work?

-________.


  1. A.
    Not yet
  2. B.
    Not still
  3. C.
    Not already
  4. D.
    Ever
A
剖析：本題考查already，yet，ever和still用于現(xiàn)在完成時的區(qū)別．一般說來，already(已經(jīng))和still(仍然)常用于肯定句；ever(曾經(jīng))多用于疑問句；yet可用于疑問句表示“已經(jīng)”，也可用于否定句表示“還，尚”．
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