2. 外语
  3. The missile is designed in such a way that once______ nothing can be done to retrieve it.

The missile is designed in such a way that once______ nothing can be done to retrieve it.

admin2012-05-07  86
问题 The missile is designed in such a way that once______ nothing can be done to retrieve it.
选项 A、fired
B、being fired
C、they fired
D、having fired
答案A
解析 省略结构题。题干主句为The missile is designed in such a way，that引导定语从句修饰a way。在定语从句中，句子主干是nothing can be done to retrieve it。原句应为Once the missile is fired，nothing can be done to retrieve it．当从句中的主谓语是“主语+be”时，可以将两者省略。本题中省略了the missile is，因此选择A。
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