fill in the blanks with the correct word to make the sentence present tense

carol_ a piece of gum.
chewed. chews. chewing
Timmy_ on the swing set.
playing.played.plays
mary_over the big pile of leaves
jumps.jumping.jumped
sasha_ to her friends on the phone
talking.talks.talked
joe_to the store to buy some gum
walking.walked.walks​