He loves his mother very much,怎么该感叹句?

是How he loves his mother!
How much表示多么时.常用于陈述句.
例如:
You don not how much I want to see you again
你不知道我是多么的想再次见到你.
I didn't realize how much this meant to you.
我不知道这个对你的意义有这么大.