A:地球
B:水桶
C:绳子
D:手
优惠广告、虚假广告遍布大街小巷,令人眼花缭乱。近日,小明在陪爷爷逛街时看到了这样一则广告:
——Where do you often exercise?——I often exercise in a park. It's close to my house.