Answer:
1) Their, their
2) they, their, they, they
3) Their, them
Explanation:
Their is generally used to talk about something that belongs to someone.
ex: THEIR ball, or THEIR cookies.
They is generally used when talking about an object, a person, or a group of people.
ex: THEY have a ball, or THEY like cookies, THEY are downstairs
Them is generally used for when you are talking about actions, the word is used to state that whatever you are talking about have or will experience the action
ex: please put THEM on the table, I put THEM downstairs next to the flower pot
I hope that made sense!
