The verb "to be"

Choose the right answer. He ... my best friend.

Choose the right answer. Where ... my book?

Choose the right answer. I ... a teacher. I work at school.

Choose the right answer. These ... my dogs.

Choose the right answer. It ... a good day.

Choose the right answer. Who ... you?

Choose the right answer. This ... my red pencil.

Choose the right answer. We ... her cousins.

Choose the right answer. I ... an engineer.

Choose the right answer. Her toy ... in the bag.