Вставьте глагол "to be" в нужной форме: 1.Where ... you from? 2.How old ... your brother? 3.I ... glad to see you here

Вставьте глагол "to be" в нужной форме: 1.Where ... you from? 2.How old ... your brother? 3.I ... glad to see you here. 4.Tom`s parents ... travel agents. 5.John ... not a student. He...a doctor. 6.They ... not fond of football. 7.Who ... in charge of marketing. 8.The best seats ... 10$. 9.This book ... not intertsting. That book ... fine.