That was the steepest mountain they had ever climbed
A.would climb B.have climbed C.had ever climbed D.was climbing
给理由!
奥，错了
That was the steepest mountain they _________
人气：441 ℃ 时间：2020-03-20 07:21:06
解答
前句:past tense
后句past perfect tense
＋ever加重语气
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