B

【详解】句意： —— 听！我想一定是李太太在隔壁房间唱歌。 —— 不可能是她。我知道她已经去纽约了。

考查情态动词。 may 可能； must 必须，一定； can’t 不能； mustn’t 禁止。结合语境和 “I think” 可知第一空推测在隔壁唱歌的是李太太，用 must 或 may 均可；根据第二空的后一句 “I know she has already left for New York.” 可知李太太已经去了纽约，所以她不可能在隔壁唱歌，否定推测用 can’t 。故选 B 。

答案

例文

My changes

I’m in Grade 9 and I have changed a lot. First, I used to be thin, but now I am a little fatter. I used to have curly hair, but now I have short straight hair, because I am busy with my study. Second, I have made much progress in English, I used to be weak in it. But with my English teacher’s help, now I often get good scores on my English exams. What’s more, I’m more outgoing than I used to be. I used to be afraid of speaking in front of people. But now I can give a speech in public. I’ve also made many friends.

These are my changes. What about yours?

【详解】 1. 题干解读：本文是一篇材料作文。围绕 “ 我的改变 ” 写一篇短文，要求从三个方面描写自己的变化。

2. 写作指导：本文采用一般过去时和一般现在时，人称以第一人称为主。本文分为两段式：第一段从身形，英语学习以及性格方面介绍自己的变化；最后一段总结概括。写作时保持主谓一致性，做到无语法和标点错误。