they know each other还是others,为什么

they know each other还是others,为什么 they know waht each other are doing We often help each ( ) 用one还是other还是others 为什么 they know what each other is doing.为什么错误错在那里. Jack and Susan______(know)each other since they were childre They _____ know each other almost twenty years ago. They have know each other for 10 years.同意句 They know each other"s favorite(s)请问句中的each other"s 能不能换成 on we know each other they are across from each other还是they are next to each other But as they get to know each other more,they find out each o each other 和 each others 的问题?