题目

根据上下文或者括号内的提示写出单词，注意格、性、数、级的变化。Hi, everyone! I am Sun Min. Here is【1】 (某事，某些信息) about my family. I live in a flat in the center of Niushan. Our flat is on the 【2】 (two) floor. It’s not very big. But we have a nice living room. After dinner, Mum often spends happy hours with【3】 (we) there. My sister shares a bedroom 【4】 (和) me. Now we are listening to music in bed. After a day’s hard work, the music sounds 【5】 (wonder). My sister and I often talk about math 【6】 (问题) in our bedroom. We a下列关于可逆反应达到平衡状态的描述，正确的是（　　） A、反应停止B、正、逆反应速率都为零C、各物质浓度不再改变D、反应物的浓度为零