In which one of these sentences does an adverb modify a verb?
A. The dress was terribly old.
B. Jacob was a very smart boy.
C. Mr. Dodge moved in an extremely slow manner.
D. Lucy quickly hid behind the tree
The sentence in which and adverb modifies a verb is: D. Lucy quickly hid behind the tree. The verb 'hid' is modified by the adverb 'quickly'.