I'm very disappointed that he failed to win the game.这个句子是状语从句吗?请问这个句子是状语从句吗?是原因状语从句吗?有用that引导的原因状语从句吗?或者这是什么句子?

I'm very disappointed that he failed to win the game.这个句子是状语从句吗?
请问这个句子是状语从句吗?是原因状语从句吗?有用that引导的原因状语从句吗?或者这是什么句子?

I'm very disappointed that he failed to win the game
that he failed to win the game是原因状语从句
我是从事英语的,乐意为你解答.