2. 外语
  3. Without animals and the information the animals gave, it______man much longer to go into space.

Without animals and the information the animals gave, it______man much longer to go into space.

admin2014-08-25  60
问题 Without animals and the information the animals gave, it______man much longer to go into space.
选项 A、would take
B、took
C、had taken
D、would have taken
答案D
解析 虚拟语气题。本题为虚拟语气，由于人类现在已经步人太空，本句是针对过去的虚拟语气。主句用would have done的形式。
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