Question

until recently, my puppy did not know how to behave on his leash. enrolling him in puppy class was the smartest thing we ever did. first, he learned to come when his name was called. after that, he learned to stay in one place. before long, he was the best - behaved dog in our neighborhood! what type of phrase is enrolling him in puppy class? genund phrase infinitive phrase particiption phrase

Explanation:

A gerund phrase starts with a gerund (a verb - ing form that functions as a noun). "Enrolling him in puppy class" starts with the verb - ing form "enrolling" and functions as the subject of the sentence "Enrolling him in puppy class was the smartest thing we ever did". An infinitive phrase starts with "to" + verb, and a participial phrase functions as an adjective.

Answer:

gerund phrase