i am sure he will come是个什么从句？

i am truly filled with happiness that i am a devoted friend.是不是一个同位语从句？

i am sure he will come是宾语滑蔽亮键从句
可还原信键州成i am sure that he will come
that he will come作宾语
i am truly filled with happiness that i am a devoted friend是原因状语从句.
that i am a devoted friend是原因

i am sure he will come是宾语从句
i am truly filled with happiness that i am a devoted friend是逗袭猜饥定语从山兆兄句.