grateful

我对你所有的帮助真的非常感激。

I'm really ___grateful to you for all your help.

如果您能尽快回复，我们将不胜感激。

We would be most ___grateful if you could reply soon.

我对那些建立了俱乐部的男孩们心存感激。

I'm ___grateful to the boys who established the club.