Which word in the sentence does the adverb modify?
the film club usually meets at the same location.
a. film
b. club
c. meets
d. location

The adverb "usually" modifies the word "meets" in the sentence "The film club usually meets at the same location". An adverb is a word that adds to the verb. In our case, the verb is the word "meets" so the adverb is "usually". An adverb not only adds to the verb, it modifies a verb, adjective, another adverb etc. Adverbs express place, time, frequency etc. They answer the questions how, in what way, when, where, and to what extent. 

The correct answer is c