Choose the odd one out.

EARTHWATCH

Have you ever wanted to do something different? Five years ago, Will Slade read about (17) ______ organization called Earthwatch. Earthwatch finds volunteers (18) ______ expeditions (19) ______ and explore different parts of the world.

Will decided (20) ______ an expedition to study elephants in Africa. "I wasn't sure about it before I went." say Will. "But in fact, I really enjoyed every minute of the expedition. We slept (21) ______ tents and we cooked our own food, but it was the great (22) ______ elephants and all the other animals there". "I've (23) ______ all the expeditions, and I have seen some fantastic places. How (24) ______ people have slept (25) ______ a beach, climbed a mountain, or see a whale? This world is such a beautiful place, but it's disappearing fast. We have to learn more (26) ______ it if we are going to save it."

(17) ___________

My aunt Thuy ................ (31) in Ha Dong. She .....................(32) in a hospital in the centre of Ha Noi. Every morning, she..................(33) a bus to her hospital. Her work is .................(34) care of sick children. She .................(35) the children. She always ............(36) that children............(37) very lovely. Now she........................(38) her job with great pleasure. But next year she ............(39) to Ho Chi Minh City with her husband . She .................(40) very unhappy.

Do volunteers often spend time helping other people in ___________, orphanages or homes for the aged.

I / not / visited / museum / three months.