M5 U1（一）
1. I must have sounded very proud of myself after the test, saying loudly how easy it was and how I was sure to get a good mark. (P2)
分析：此句的主句是：I must have sounded very proud of myself。此句中，after the test 是介词短语作时间状语。saying loudly how easy it was and how I was sure to get a good mark作伴随状语，修饰谓语动词sound。在此分词短语结构中含有两个how引导的从句作动词say的宾语。注意句中must have done的用法，表示对过去肯定的推测。如：
It must have rained last night, for the ground is wet.
