My parents ______ (not act) in a play
haven't acted / have never acted
My grandparents _____ (travel) by train three times
have travelled
Lucas _____ (not travel) by train
hasn't travelled / has never travelled
Gabriel and Andrew _____ (not touch) a dolphin
haven't touched / have never touched
Annie _____ (touch) a dolphin twice
has touched
Rachel and Monica _____ (swim) in a lake once
have swun
Julia _____ (swin) in a lake many times
has swun
Josh and Mark _____ (skydive) recently
have skydived
Mary _____ (act) in a play four times
has acted
Marianne _____ (not skydive) this week
hasn't skydived