请老师帮我分析一下这句英文的成分和句子结构行吗?
I was asked to speak to the dean.
1,这句话的谓语是was asked吗?
2,那宾语是什么呢?是 to speak吗?
3,主语补足语是asked to speak 还是 to speak?
4,这句话因为出现了系动词was,所以这句话中没有宾语成分?
5,to the dean是状语吗?