Exclamatory Sentence is the kind of sentence which contains a strong emphasis, emotion, feeling or excitement. Mostly, these sentences begin with What/How.
What a beautiful sight it is!
How difficult the paper is!
How boring the movie is!
What a happy man he is!
What a terrible story you have told!
What an unfortunate person he is!
Assertive Sentence is the kind of sentence which makes an informative statement. It begins with subject which tells something directly. In stead of What/How, the word very is used in Assertive Sentences.
It is a very beautiful sight.
The paper is very difficult.
The movie is very boring.
He is a very happy man.
You have told a very terrible story.
He is a very unfortunate person.
What a fine hit it was indeed!
It was indeed a very fine hit.
How pleasant the weather is!
The weather is very pleasant.
What a intelligent boy John is!
John is a very intelligent boy.
Hurrah! We have won the match.
It’s a matter of joy that we have won the match.
Alas! He failed in the test!
It is a matter of sorrow that he failed in the test.
Had I been a politician!
I wish I had been a politician.
Would that I could be a writer!
I wish I could be a writer.