Exercise S22

At present, 12 northern white rhinos live in the wild and 15 in captivity. There are no females in the West and those in eastern Europe are getting too old for breeding.

During the Second World War, water in England was rationed due to a shortage. In the bathtubs at Buckingham Palace, there were lines marking the limit allowed.

A rare foal was recently born at Cricket St. Thomas Wildlife Park. There they breed the smallest miniature ponies in the world.

When telephones were first invented, many busisness owners refused to have them installed in their offices. There were messenger services that they believed to be more efficient.

It is not uncommon for Americans to retire to homes in the southern states. There they find the climate more to their satisfaction.

Not only have poetry sales almost doubled in the past three years, but there has also been a renaissance in writing.

In Europe, water companies keep live trout in special troughs to monitor water pollution. Special sensors there can detect high levels of pollution through the trout's gill movements

The world's largest optical telescope is located in Australia. There scientists make measurements of stars in the Milky Way galaxy at a far higher resolution than is possible with any other instrument.