Answer:
do this yourself
Explanation:
your teacher could obvisouly tell if it's your level of writing
I'm not sure how many errors you are looking for but, this is what I got:
My Father and I, have already several states this month.
I really only see one error. Father should be capitalized because Father is a title of a person. I would also say the "I" should always be capitalized but, it looks like you already got that. Everything else seems ok.
Hello !
I think the answer would be...
The last option, "The Nation has to go through significant changes to avoid such tragic wars in the future."
I hope I was able to help you out ! :DD