The answer is “b. me divierto” because it is present tense. in english this means “I’m having fun”. your sentence means “When I go out with Miguel, I always...” the answer is have fun, which means the answer is letter b. here’s what each answer means: a. me diverti - i had fun b. me divierto - i have fun c. me divertia - i used to have fun/i had fun d. me divertiré - i will have fun/i’m going to have fun