If it for the snow, we the mountain yester

If it ________ for the snow, we ________ the mountain yesterday．
A. were not; could have climbed
B. were not; could climb
C. had not been; could have climbed
D. had not been; could climb

1986120212 1年前已收到1个回答举报

dreamsboy 幼苗

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答案C
原题中的yesterday是信息词,可暗示该句应选与过去事实相反的虚拟语气条件与主句的动词形式.从句用过去完成时,而主句用could+have+过去分词.

1年前

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