Which word is used incorrectly in the following sentence?
My father, from who I have learned so much, has had an immense effect on my career as a nurse.

Question

Quizplus · Accepted Answer

Who should be used to refer to the subject of a sentence.
Whom would be used to refer to the object of a verb or preposition.
Since who is an object of the preposition (from), we must use whom.
Hint: If you can replace the word with he or she, use who. If you can replace it with him or her, use whom.

Which Word Is Used Incorrectly in the Following Sentence