Помогите пожалуйста! Jack ___ good at sport.Jack ___ very good at

Помогите пожалуйста!
Jack ___ good at sport.
Jack ___ very good at geography.
Sadie ___ at the bus stop witch Jack.
Mark and Annie ___ at Westover School.
They ___ Australian.
I ___ Australian.
I ___ ___ (your nationality).
Mark Annie ___ brother and sister.