请英语老师来分析一句话,谢谢!
I must have soundde very proud of myself after the quiz,saying how easy it was and how I was sure to get a good grade.
请问老师这一句话saying how easy it was and how I was sure to get a good grade.在句子中做什么成分?是状语吗?请问是什么状语? 表达了什么含义?