i don't think (that)differents are important in a friendship

问题描述:

i don't think (that)differents are important in a friendship
这是一个宾语从句,那哪个是主句,哪个是宾语.怎么区别呢?还有,不是说复合句有两个句子吗,那thomas wants to know where nina lives中的nina lives也是一个句子吗?他有宾语吗

就主句来看,主语是I 谓语是 think 宾语是 that differences are important in a friendship.
就从句来看,主语是differences,谓语是are 表语是important.
没有宾语,live 不及物.