Jack is ()best friend A his b her c their d he

问题描述:

Jack is ()best friend A his b her c their d he

不可能是 D ,那么另三个具体要看上下文再选择

C 泛指吧。Jack 是他们最好的朋友~

除D都可以,要根据上下文

A杰克是他的好朋友

C 泛指吧.Jack 是他们最好的朋友~