어법상 옳은 것은?
- ①Of the billions of stars in the galaxy, how much are able to hatch life?
- ②The Christmas party was really excited and I totally lost track of time.
- ③I must leave right now because I am starting work at noon today.
- ④They used to loving books much more when they were younger.
정답 ③
출처: 인사혁신처 공개 기출(공공데이터포털, 이용허락 제한 없음)