摘要： -What a great success Shenzhou Ⅶ is! -Yeah, our scientists must have done everything they can it up. A. send B. sending C. to send D. to be sent [解析]选C.考查非谓语动词.everything后是省略了that及谓语动词do的定语从句.此处用不定式作状语.表目的.且send与scientists之间是主动关系.用不定式的主动形式.故选C.

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