题目

翻译下列句子。【1】When she was 20, she went to university.___________________________________________________【2】He was born in England.___________________________________________________【3】He was reading a book under a tree.___________________________________________________【4】Why do apples fall?___________________________________________________【5】What makes them fall?___________________________________________________某同学做了一个家庭小实验，用pH试纸测定家中一些液体的pH。他的实验记录中一定错误的是 [     ]A．肥皂水pH=10 　B．纯碱溶液pH=11　C．食醋溶液 pH=9　 D．橘子汁pH=4