—Your bag is quite nice. Where did you buy____?
—In Beijing.Do you want to have ____like this?
A:it;one
B:it;it
C:one;it
D:one;one
①说明了人随着年龄的增长,交往的范围会逐步扩展 ②启示我们积极交往,不断扩大交往范围,提高交往能力
③说明了扩大交往范围,越快越好 ④说明了人们都会交往