There will be a ___ football match on TV tonight.

“Changes should be made in the prison for the conditions there are _____,” said the reporter．

It was pretty _______ from her voice that she was playing a trick on all of us.

 The sea was calm and _____.

As there is less and less coal and oil, scientists are exploring new ways of making use  of ______________   energy, such as sunlight, wind and water for power and fuel.