A:点P在圆内
B:点P在圆上
C:点P在圆外
D:不能确定
She could speak ________ Japanese ________ Chinese, so I had to talk with her in English.
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