As many other foreign English language learners, I often find myself struggling with English prepositions. This time, I came across an irreverent but funny sentence when I was watching a strange English movie a couple of days ago.
..But then, when did a single-figure IQ hold anybody back in the police force?
Although I think I understood its meaning, I was wondering whether the preposition IN is correct or not? Would "from entering/joining" have been a better choice in place of "in"?