A:北伐胜利进军
B:五四爱国运动
C:***成立
D:中华人民共和国成立
把正确对话的代表字母写在横线上。
①Here you are, Grandma. ____ A. They are in my bag.
②What do you need? ____ B. I need some orange juice.
③Where are my rulers? ____ C. Great!
④Let's have lunch, Sally. ____ D. Thank you, Sally.