【1】She【主语】// felt 【谓语动词】//the urge【宾语】// to ask her what had happened【修饰宾语的定语】.
请问老师to ask her what had happened作urge的定语吗？what had happened是作宾语从句吗？
解答：你的理解是正确的。不定式to ask her what had happen 作前面名词“to urge”定语。what had happened 作不定式to ask her的直接宾语从句，即ask sb sth结构，问某人某事。
【2】Her friends【主语】// belonged to【谓语动词】// what were deemed as “ACGer”【宾语从句】.
解答：what were deemed as "ACGer" 为“融合性关系代词” 引导宾语从句，宾语从句作介词“to”的宾语成分。
备注(1)：融合性关系代词what=the things that/those who
Her friends belong to what were deemed as "ACGer"
=Her friends belong to those who were deemed as "ACGer"
备注：belong to 为动词belong+介词to构成短语动词
备注(2)：主动结构deem A as B =被动结构A be deemed as B “A被认为是B”
The evening was deemed as a great success.
大家认为这次晚会非常成功。
