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自考《英语(二)》试题练习:虚拟语气(11.10)

2014-11-10 08:51    自考365

  单选题

  [2007.04]If the operation ________ carefully prepared,it would not have been successful.

  A.was not

  B.has not been

  C.had not been

  D.were not

  
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