题目

阅读下面短文，然后按要求写一篇150词左右的英语短文 When Sam first got to his boarding school with his parents, he was very happy. He thought he would be able（http://www.unjs.com） to go home every weekend. When he was told he would not, he started crying because the thought of not seeing his parents was driving him crazy. He was given uniforms and all other things that he would need for the term. He started crying when it was time for his parents to leave. He was then taken to the dorm, where he saw other children happy. He tried as much as he could to fit in but could下列实验基本操作正确的是（ ）A. 倾倒液体 B. 过滤C. 加热液体 D. 熄灭酒精灯