1. A: I at YBM for 3 years. (work)
B: Excuse me, when working there? (start)
A: Three years ago.
A: I have worked at YBM for 3 years. (work)
B: Excuse me, when did you start working there? (start)
A: Three years ago.
A: 3³âµ¿¾ÈYBM¿¡¼­ ÀÏÇØ ¿Ô¾î.
B: ¹Ì¾È, ¾ðÁ¦ °Å±â¼­ ÀÏÇϱ⠽ÃÀÛÇß´Ù°í?
A: 3³â Àü¿¡.