Какое слово неправильное? The window of (1) my room face (2) the north(3). Do (1)your grandparents live with you, don't (2) they(3)? It (1)usually isn't(2) snow(3) in summer in our region. It's (1) half past (2) three on(3) my watch.
Во втором предложении первое do должно отсутствовать. То есть Your grandparents live with you, don't they?