—How did it that you made such a silly mistake?
—I myself haven’t figured it out yet.
A. bring about
B. e about
C. e across
D. e on
网友回答
A. bring about
(答案→)B. e about
C. e across
D. e on
解析：句意为：--你做出这么愚蠢的决定，怎么会发生这种事儿呢？--我自己也弄不明白（怎么会发生这种事情）。bring about 引起，使掉头；e about产生，发生；e across（偶然）遇到，碰到；e on加油，快点，开始。故答案为B