题目

根据句意及汉语提示，在空白处填入适当的单词。 1. —You have a ______(美丽的) pencil-box. —Thanks. 2. —Where is Miss Gao? —Oh, she is sitting at the ______(门). 3. —Do you have a ______(钟)? —Yes, I do. 4. Look! There is a _______(巨大的) yard in his house. 5. —What do you use this _____(东西) for? —Listening to music. 答案：1. beautiful        2. door      3. clock     4. large       5. thing一个滴水的龙头5分钟流失20毫升的水，照这样算，1天流失水多少升？1年流失水多少吨？