Multiple choice softskills leadership ___ what year were you born? at in on none of these Reveal answer Fill a bubble to check yourself B Correct answer Explanation Years are preceded by the preposition 'in.' Just as we say 'in 1990,' 'in January,' or 'in the 21st century,' we ask 'in what year.' 'At' is used for precise times (at 5 PM), and 'on' for days (on Monday).