Question

How did you ________ run into the well-known chemist? A. at the first B. the first C. in the first

How did you ________ run into the well-known chemist?
A. at the first B. the first C. in the first D. first

我知道答案是D, 谁能详细讲一下选D的原因？谢谢

Answer 1

A. at the first：起初的意思
B. the first：表述错误
C. in the first :首先的意思
句子的意思是：你怎么先碰到（偶遇/撞上）到那个有名的化学家。