月份词汇与日期表达 — 英语情景题

Sam和Lily在聊生日和月份。请选择合适的单词补全对话，每空一词（备选词：May, first, When, birthday, twelfth）。 Sam: Hi, Lily! (1)________ is your birthday? Lily: My birthday is on May the (2)________. Sam: Great! My (3)________ is on the twelfth of June. Lily: Is your mum's birthday in (4)________, the fifth month? Sam: No, it's in September.