ByrdnowknewthathewouldbeabletoreachtheSouthPolewhichwas300milesaway.这定语从句的定语是什么

问题：ByrdnowknewthathewouldbeabletoreachtheSouthPolewhichwas300milesaway.这定语从句的定语是什么

答案：↓↓↓

冯学智的回答：

网友采纳　　Byrd主语now时间状语knew谓语动词　　that（that引导宾语从句）hewouldbeabletoreachtheSouthPole　　（宾语从句中嵌套了which引导的定语从句）　　which（先行词为SouthPole,做SouthPole的定语）was300milesaway.　　三百英里外的南极