16.
Your Answer is
Correct Answer is H
Explanation
According to the meaning of the sentence "on the street where my university is..." I attend is an attributive clause that omits that/which, and modifies college. Only a restrictive obedience can omit that/which, so it cannot be used before I attend Comma, F/G error. And Down...attend is a prepositional phrase used as an adverbial to indicate the location, separated from the sentence by a comma.