阅读理解。 Guinea Pigs () are friendly animals that enjoy being held and seldom bite. They come from South America and can live as long as seven or eight years. Housing Your Guinea Pigs can be kept indoors all year round. They do not like sudden loud noises, so it's best to put their cages in a quiet place. A wooden cage is good, although a metal cage can also be used if it has a plastic floor. Feeding Guinea Pigs only eat grass and other plants. It's important to give them some fresh fruit and vegetables. Fresh drinking water should always be provided in a bottle, and food should be given in bowls, Guinea Pigs will eat plastic! Looking after your Guinea Pigs Give your Guinea Pigs as much exercise as possible, and provide them with an outdoor run, but be sure to keep cats and dogs out of the way. Young Guinea Pigs are nervous. For the first few days, talk gently to your Guinea Pigs to build up trust, then slowly introduce your hands into the cage. Your Guinea Pigs will become curious and more confident around you. After a week or two, try picking up your pets using both hands. This is a good time to start feeding your Guinea Pigs something which should be done daily. 1 . How long can a Guinea Pig live? A. Five to Six years. B. Six to Seven years. C. Seven to eight years. D. Eight to nine years. 2. What kinds of cages are the best for keeping Guinea Pigs? A. Glass cages. B. Metal cages. C. Plastic cages. D. Wooden cages. 3. Which of the following is true according to the passage? A. Guinea Pigs like biting their owners very much. B. Guinea Pigs can be kept indoors all the time. C. Guinea Pigs eat any kind of food, either plants or meat. D. Guinea Pigs needn't be fed everyday. 4. What does the passage mainly talk about? A. Some kinds of cages for pets. B. Guinea pigs from SouLh America. C. Different food to feed different pets. D. The ways to build up pets' trust.