序数词1-31的表达与运用 — 英语选择题
题目
生日卡片上写着：Leo’s birthday is on the 8th day of the month. His sister’s birthday is 12 days after Leo’s. 两人的生日都在同一个月。His sister’s birthday is on the ____ day of the month. 请选择正确的序数词。 A. twentieth B. nineteenth C. twenty-first D. twentieth-first