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:
good questis
Explanation:
there is not a clear way of the origin
Answer:
to show the reader how music formats have changed over time is the correct answer.
Explanation:
I think that the correct answer is B.<em>
</em>I hope you like this answer and have a great day! :)<em>
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