Complete the sentences with "to be" 1: i a girl. 2: my father at work. 3: alex and dino my cats. 4: alex in the garden. 5.dino on the floor. 6: my red pencil on the floor, too. 7: the other pencils in my pencil care. 8: my mother in the living room. 9: eli and rafa good friends. 10: they good at tennis.