Respuesta :

Hey there! :D

A verb phrase is a phrase that defines the action. It contains the verb in the sentence. 

"walked" is the verb, so "A" Have walked, is the answer.

I hope this helps!
~kaikers

The right answer is A. have walked.

The verb expresses the state of the subject or an action performed by the subject (active voice or pronominal voice if he exercises the action on himself) or undergone by him (passive voice).

Most questions are formed as follows:

Auxiliary (have) + subject (you) + verb (walked)