D Dear Principal,   I'm a student from 907. I write this letter to you because I found that there are more and more plastic bags atschool and we all know that it is not good for the Earth at all.    Plastic bags were made of “polyethylene” which is made out of petroleum. Petroleum as we know is a limitednatural resource. Since most of the plastic bags we use are broken into small pieces and will never decompose intothe earth! The plastic bags left as a garbage would affect the wild life. Stray dogs would eat them with the food. Seaanimals would mistake them to be jellyfish and eat them. Even the sea birds and turtles also eat the pieces. The plantswould grow on such land and the animals would feed on such plants. And we are on the food chain, too.   It's very easy to say no to plastic bags. Keep a bag with you. Don't ask for a plastic bag if you don't need one.You can always carry the things by hand. Whenever you want to get a plastic bag, think of the fact that it would befor centuries on the earth. I hope everyone at school can say no to plastic bags. Can I have the chance to speak in front of all the students?                                                                                                                                                                                                                                     Regards,Euge *polyethylene 聚乙烯 petroleum 石油 decompose 分解 food chain 食物鏈
【題組】47. What is Euge?
(A) A student.
(B) A principal.
(C) A teacher.
(D) A scientist.