A. Thefirstfloor. B. Thesecondfloor. C. Thethirdfloor. D. Thefourthfloor.
A. Inabank. B. Inabookstore. C. Attheairport. D. Atahotel
A. 鼠 B. 猪 C. 牛 D. 鸡
A. >1000ml B. >1500ml C. >2000ml D. >2500m1 E. >3000ml