2. 外语
  3. __________(要不是有计算机), there would not have been man-made satellites or rockets.

__________(要不是有计算机), there would not have been man-made satellites or rockets.

admin2009-04-23  86
问题 __________(要不是有计算机), there would not have been man-made satellites or rockets.
选项
答案But that there were computers
解析 考查点：虚拟语气中“要不是”的表达方式是but that；此处条件状语从句表示的是和现在相反的虚拟，故用一般过去时。
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大学英语四级

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