For the first red, you don't need an article before "relationship".
When you're saying "type of [word]", do not put any article before that word.
Example: "a type of device"
Not too sure about the "your back" parts. It could be your teacher does not like repition.
Also not too sure about "did". He probably wanted you to use the word "felt" instead of "did feel"
The first word of the last paragraph should be "in" not "at".
The red commas definitely do not need to be there.
Don't know why he marked "time to" and "to" red.
Answer: A good summary of an essay should probably include the main idea of the excerpt from a book or an article
Explanation:
Articles and Books have main idea by the writer who wrote the book
Answer:
The answer would be cruelty
Answer:
Lives
Explanation:
it is saying he is living there
