Помогите пожалуйста вставить верный глагол!5. We... our grandparents every Sunday.a) visit

Помогите пожалуйста вставить верный глагол!
5. We... our grandparents every Sunday.
a) visit b) visits c) are visiting
6. He ... to school yesterday
a) goes b) went c) is going
7. My mum ... many books two years ago
buys b) bought c) buy
8.Todayis Wednesday. Yesterday was
A) Monday b) Thursday c) Tuesday
9. I usually go to school... Foot
A) on b) by c) in