sentence: Erin wanted to go to a bar to celebrate the team's victory, but Christine wanted to go home, because 
complete: Christine was feeling exhausted.

sentence: Victoria asked Samantha to tie the horse to the hitch with a rope because she didn't know how to tie a knot; 
complete: Samantha showed her how.

sentence: Monica brought makeup to the sleepover and Mary brought video games, 
complete:
Mary had a boyish personality.