帮忙分析一下这句的结构 it's not easy to say which is British English and which is American English
问题描述：
帮忙分析一下这句的结构 it's not easy to say which is British English and which is American English
特别是那个which
答
it是形式主语,真正的主语是从to say到句末.
真正的主语中有and 连接的并列宾语从句,是两个which引导的宾语从句,做say的宾语.which在两个从句中都是做主语.