Coffee contains a stimulant called ..... so I have to be careful not to drink any coffee at night or I won't sleep at all.

Coffee contains a stimulant called ..... so I have to be careful not to drink any coffee at night or I won't sleep at all. (*) pastries (*) milk (*) caffeine


This is a companion discussion topic for the original entry at https://english.best/questions/16448,coffee-contains-a-stimulant-called-___-so-i-have-to-be-careful-not-to-drink-any-coffee-at-night-or-i-wont-sleep-at-all/