Вставьте глагол To be в нужной форме?1. My brother ... a

Воткните глагол To be в подходящей форме?
1. My brother ... a pupil.
2. My sons ... at school yesterday and my husband ... at work.
3. Yesterday the ... at the library.
4. We ... not in the south last summer.
5. My sister ... a student last year.
6. ... you in the park yesterday?
7. He will ... a dentist next year.
8. Will you ... at home in the evening today?
9. They ... not at home now, they ... at school now.
10. These apples ... red and those apples ... gree.