—Couldyoutellus       totravelfromEarthtoMarsbyspacecra...

问题详情：

—Could you tell us        to travel from Earth to Mars by spacecraft?

    —It takes months，I think．

   A. how far it takes              B. how often does it take

C. how long it takes             D. how soon does it take

【回答】

C

知识点：宾语从句

题型：选择题