Understanding 'There', 'Their', and 'They're'

I can’t find my backpack. I must have left it over _______.

______ going to the arcade after school.

The players forgot to charge ______ controllers before the match.

"We should go over ______ to see if the new game is on sale."

I think ______ going to love the new update!

Correct the sentence: "Their going to win the tournament!"

Correct the sentence: "We left our backpacks over their."

Choose the correct word to complete the sentence: "The cat chased ______ tail."

Choose the correct word to complete the sentence: "______ is a book on the table."

Choose the correct word to complete the sentence: "______ house is at the end of the street."