The verb "to be"

Choose the right answer. My friends ... from Mexico.

Choose the right answer. These pens ... blue.

Choose the right answer. I ... at home now.

Choose the right answer. I ... his sister.

Choose the right answer. My ducks ... black and white.

Choose the right answer. The books ... interesting.

Choose the right answer. This cake ... tasty.

Choose the right answer. This room ... big.

Choose the right answer. I ... a pupil.

Choose the right answer. Jane ... very beautiful.