In this area of the world a very high number of people live to be 100. Scientists want to know why. Ecuador. Vilcabamba, a small village in the Andes, is often called 'the Valley of A Long Life', What's its secret? Firstly, Vilcabamba is not very hot or very cold - the temperature is usually between 18 and 27 degrees, and the air is very clean. Secondly, people work hard in the fields, and do a lot of exercise. Thirdly, their diet is very healthy - they eat a lot of fruit and vegetables, and they hardly ever eat meat or fish, The water they drink, from the river in Vilcabamba, is very rich in minerals. They also have a good social life. In Vilcabamba people say, The left leg and the right leg help you to be healthy, because they take you to your friends homes.​

21. My brother is the slowest person I’ve ever known.

22. He is the greatest football player.

23. I am the happiest person because I’ve passed my exams.

24. Liz is the laziest girl in our group.

25. He is the braviest man we’ve ever seen.

26. Our house is the biggest house in the street.

27. I think we are the noisiest students at our school.

28. We need a longer ladder than this one.

29. I’m sure Angela is the fastest girl at school.

30. He is the most unpleasant man I’ve ever met.

31. This river was more dangerous than we thought.

32. She is more nervous today than she was yesterday.

33. Liz is younger than Mary.

34. It is the coldest day of the year.

35. My skirt is shorter than yours.

36. This car is the largest one.

37. The trip to London was the most interesting.

38. My answer was the quickest in this competition.

39. You can find it in the nearest shop.

40. It is the widest river in our district.

Eastern National operates interpretive bookstores in over 150 National Park units.[1] EN publishes approximately 100 new products for the National Park Service each year.[3] They also operate the Jamestown Glasshouse in Jamestown, Virginia, and partner with other agencies such as the Army Corps of Engineers and the United States Forest Service. eParks.com is the official online store of America’s national parks, and is operated by Eastern National. Founded in 1947, EN provides critical funding and support for educational and interpretive programs in America’s national parks and other public trusts.

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