Writing Feedback / Should air fares be increased to discourage people from travelling by plane [3]

I am suggesting some changes. Incorporate it if useful.
"but in the other hand -- on"
Also (bring some benefits to people in a lot of ways.) this sentence is wrong. Either remove 'some' or ' in a lot of ways' and add "it brings" instead of bring.

Also, I would advise you to follow one side of discussion if it's debate.

Undergraduate / A NARRATIVE ESSAY BASING ON A PIECE OF MUSIC [3]

I would like to point out some grammatical mistakes.
1. finally perceived his honesty
2. Everything have gone on perfectly -- here I would advise you to change "have gone on" to "has gone" or "was going on"
3. really cares a