you tell me whether he ___________it over before he cut down

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you tell me whether he ___________it over before he cut down the trees
1）---Could you tell me whether he ___________it over before he cut down the trees
--- I am not sure .
A.will think B.would think C.had thought D.thought
这题答案是选C,想问一下英语语法高手：为什么选C,哪里体现了是过去完成时?

过去完成时态表示过去的过去, 两个动作进行对比
这里 cut 是过去时, 因为要是现在时的话就是cuts
在砍之前考虑, 砍 cut都是过去时 , 想在砍之前, 所以用过去完成时态
是不是有点罗嗦?呵呵

you tell me whether he ___________it over before he cut down Could you tell me whether he ______ free next week? he n___ knocked me down before he saw me you see,before he came down here, Could you tell me where he lives Tell me whether you really love me ?! could you tell me is he a student还是could you tell me he is a He doesn't tell me where he lives.Can you tell me his addres 为什么he said,''did you see him last night变为he asked me whether Did he tell you __ he came here for the day before yesterday whether能表示 “如果”吗 Would you please tell me_____with Peter?He Whether a person likes you or not can tell by the way he tre