In the following passage some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.

Swans are large waterbirds that (1) ________ to the family Anatidae, which also includes ducks and geese. They (2) ________ for their beauty and grace and are often used as symbols of love, fidelity, and elegance. They are also famous for their (3) ________ features, such as their long necks, large wingspans, and striking white feathers. (4) ________, not all swan species are white; the Black Swan, (5) ________, has black feathers with a red bill. Swans are found on every continent and are known for their strong pair bonds. They mate for life and can live up to 20 years.