这些都是英语语法中挺重要的东西!很抽象不好说举些例子给你看看吧! 介词：in on to at of for …… 宾语:I am a student中student就是此句的宾语 宾语从句：宾语从句在复合句中起宾语的作用,可以作动词的宾语,也可作介词的宾语.引导宾语从句的词有连词that,if,whether;连接代词who whose what which连接副词when where how why等.如do you know WHY HE CROSSED HIS ARMS?大写部分为宾语从句
