I have _______ a new sport. (practice)
practiced
I have _________ abroad.(travel)
travelled
I have ________ volunteer work. (do)
done
I have __________ a new language. (learn)
learned/learnt
I have _______ an extreme sport. (do)
done
I have _______ a sunrise/sunset. (see)
seen
I have _______ a marathon. (run)
run
I have _______ a drink for a strenger. (get)
gotten
I have _______ a tree. (plant)
planted
I have _______ to an audience. (sing)
sung