The word which best completes the sentence given about Nam writing his essay is:
According to the given question, we can see that Nam is said to perform an action and the action is already in the past tense.
As a result of this, and based on the rules of concord which is essentially subject-verb agreement, the word which would best complete the sentence i wrote because it agrees with the subject which is in past tense.
Therefore, the correct answer is wrote
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