The verb "to be"

Choose the right answer. He ... my father.

Choose the right answer. This ... a black pen.

Choose the right answer. That car ... red.

Choose the right answer. It ... a big dog.

Choose the right answer. David and Bill ... my brothers.

Choose the right answer. I ... a doctor.

Choose the right answer. I ... from London.

Choose the right answer. They ... pupils.

Choose the right answer. These ... my pencils.

Choose the right answer. I ... ten.