Read the following passage and choose the best answer for each blank.

           As well as being a necessary life-saving skill, swimming also (26)________us with a source of great pleasure and relaxation. Swimming, as well as other water sports like diving, surfing or just floating on your back, are some of the best ways to have (27)________and keep fit at the same time. Water sports are enjoyable for people of (28)________ages and even babies can learn to swim.

            For elderly people or (29)________with physical handicaps, swimming provides gentle, yet effective exercise. Swimming for fitness and recreation has been popular (30) ________the earliest times, for instance in ancient Egypt, Greece and Roma. Swimming competitions developed in the nineteenth century and swimming races were (31)_______ in the first of the modern Olympic Games in 1896. Now water sports are (32)________ all over the world and most towns have at least one swimming pool.

            Most water sports - swimming, surfing and water-skiing, etc, take (33)________on the surface of the water, but scuba divers explore deep below the waves.

There they can find fascinating sea creatures and strange rockformations. Some archaeologists are divers. (34)________search the seabed for wrecks of ships sunk hundreds of years ago which (35)________ objects that show how people lived in ancient times.

Most water sports - swimming, surfing and water-skiing, etc, take (33)________on the surface of the water, but scuba divers explore deep below the waves.