The instructor really knows the subject.
The sentence is referring to a instructor so it should be the instructor not that instructor. It shouldn't be written as reallyknows it should be really knows. There is no need to capitalise the first alphabet of subject as it is simply a common noun.
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Option B is the correct option hun :)
The answer to this question is Most likely True
Its D. I wore an essay about the benefits of exercise.
I think letter:
A.Washington married Martha Custis,a wealthy widow.