Study the words in the box and choose the right word for each blank. 选词填空(仅写字母代号) A. beef B. hidden C. kilogram D. liter E. raise 1. In English, we use different words for the meat of animals, for example, the meat of a pig is pork, and the meat of a cow is ______. 2. If we hide something, we put it somewhere so that it cannot be seen. So, something that is ______ is not easily noticed. 3. A _______ is a metric unit of weight and is equal to 2.2 pounds. 4. One gallon is about 3.8 _______ in America. 5. Farmers _______ sheep for meat, skins, and wool.