Read the passage and choose the best answer (A, B or C) to each space.

EARTHWATCH

Have you ever wanted to do something different? Five years ago, Will Slade read about (1) ______ organization called Earthwatch. Earthwatch finds volunteers for expeditons to study and explore different parts of the world.

Will decided (2) ______ an expedition to study elephants in Africa. "I wasn't sure about it before I went", says Will. "But in fact, I really enjoyed every minute of the expedition. We slept in tents and we cooked our own food, (3)                 it was great to see elephants and all the other animals there". "I've enjoyed all the expeditions, and I have seen some fantastic places. How (4) ______ people have slept on a beach, climbed a mountain, or seen a whale? This world is such a beautiful place, but it's (5) ________fast. We have to learn more about it if we are going to save it."

How (3) ______ people have slept on a beach, climbed a mountain, or seen a whale