Can you help me check the following sentences I'm doubtful about? Thank you.

1)The dragon tries to kill Beowulf with the flames he blows from his mouth.
2) Beowulf is buried wiht the glory and the gold he had won (?) in his battles.
3) The name Beowulf results from the root words bee and wolf,meaning "bear".
4) The dragon became savage in mood. (instead furious with Beowulf.
5) Beowulf is an epic poem from or of? the 7th century.
6) He has to fight two (or against/with?) gigantic monsters.
He is presented as/like the perfect epic hero: he is brave and corageous.
7) The dragon is described as a snake, quick and horrible (or a horrible and quick snake?).

1 - OK

2 - with

3 - delete "results" and use "comes from"

4 - either phrasing will work

5 - italicize the title of the poem; don't italicize the name of the main character

6 - you can use "against" or "with" or neither; use "as"

7 - delete the words in parentheses

1) The dragon tries to kill Beowulf with the flames he blows from his mouth.

The sentence is grammatically correct. The dragon uses flames from its mouth to try and kill Beowulf.

2) Beowulf is buried with the glory and the gold he had won (?) in his battles.
The sentence is almost correct. Instead of using a question mark, you can use a comma. "Beowulf is buried with the glory and the gold he had won, in his battles."

3) The name Beowulf results from the root words bee and wolf, meaning "bear."
The sentence is grammatically correct. The name Beowulf does come from the root words "bee" and "wolf," meaning "bear."

4) The dragon became savage in mood (instead of furious with Beowulf).
The sentence is grammatically correct. Instead of using "furious with Beowulf," you can use "savage in mood" to describe the dragon's anger.

5) Beowulf is an epic poem from the 7th century.
The sentence is grammatically correct. Instead of using "from or of," you can simply use "from" to indicate that Beowulf is an epic poem that dates back to the 7th century.

6) He has to fight two gigantic monsters.
The sentence is grammatically correct. Instead of using "or against/with," you can simply use "two" to convey that he has to fight two gigantic monsters.
He is presented as the perfect epic hero: he is brave and courageous.
The sentence is grammatically correct. Instead of using "like" you can use "as" to describe how Beowulf is presented as the perfect epic hero. Also, "corageous" should be corrected to "courageous" (spelled as "brave and courageous").

7) The dragon is described as a snake, quick and horrible.
The sentence is grammatically correct. Instead of using "a horrible and quick snake," you can use "quick and horrible" to describe how the dragon is characterized.