29. A (Câu c/m : In order to stay healthy it is important to have a balanced diet)
30. B ( câu c/m : Proteins are very important for building our body. They help us to build new cells as old ones die.)
31. C (câu c/m: Fat can be found in vegetable oil, in butter and in nuts.)
32. A ( câu c/m: Carbohydrate and fat are important as they enable us to store energy.)
33. D ( câu c/m: Our body also needs minerals, such as iron and calcium, and vitamins.)
