2. A: Why are you happy?
B: I to a party. (invite)
A: Why are you happy?
B: I am invited to a party. (invite)
A: ¿Ö ±âºÐÀÌ ÁÁ¾Æ?
B: ÆÄƼ¿¡ ÃÊ´ë ¹Þ¾Ò°Åµç.