1. No matter what, he tried but couldn't make the buzzing noise in his head go away.
2. The hero of the story defeated a murderer and a monster.
3. He was found in the number of casualties that occurred.
4. The village dogs began to unionize at the full moon.
Explanation:
The grammar of the sentence is correct, the punctuation was also correct except for some minor changes that I have highlighted. There was only a problem with few words. The word which are repeated are sometimes empty word. The words in the sentences have already communicated the verb and there is no need for any additional adverb to support the statement. The listener can understand the meaning clearly.
