다음 중 31일이 있는 달은 어느 달인가요? 1월, 2월, 3월, 4월, 5월, 6월, 7월, 8월, 9월, 10월, 11월, 12월
1월, 3월, 5월, 7월, 8월, 10월, 12월은 31일입니다.
Which of the following months has 31 days? January, February, March, April, May, June, July, August, September, October, November, December
January, March, May, July, August, October and December have 31 days.