I tried every means to reach my goal but failed. So desperate that I almost
lost heart.
A. I did feel
B. did I feel
C. felt I
D. I felt
网友回答
A. I did feel
(答案→)B. did I feel
C. felt I
D. I felt
解析：考查固定句型。So…that结构，so 置于句首时，主句部分倒装。而 feel需借助于助动词进行倒装，所以选B。