When ___ comes to saving energy , big changes start with small steps , like turning off the lights.          

Some Australian Aborigines still live in a similar way to their ancestors, while ______ live in cities, towns and the country in the same way _____ their fellow Australians.

______of them knew about the plan because it was kept a secret.

 Whom can you trust, if not _______ ?

 Upon arriving home from a business trip, dad asked mum about my academic performance at high school and then _____ of my little sister, who was in junior school.