摘要：他拿出呼吸器。他总是在课堂上做笔记。

He entered his classroom. He quickly took a seat. He was a minute late. The professor was calling names. It was his first day of college. He was sweating. He had been running around looking for his classroom. It took him some time to find the classroom. "David?" the professor called. He raised his hand. He was out of breath. He took out his inhaler. He took a puff from his inhaler. It gave him breath. He took out his notebook and a pen. The professor started talking. He took notes. He always took notes in class. It was a good habit. He studied his notes after class. He was a good student. He wanted only good grades.

他走进教室，急忙坐了下来。他迟到了一分钟。教授正在点名。这是他上大学的第一天。他出汗了。他一直跑过来跑过去找教室。找到教室很是花了一些时间。“大卫？”老师叫他的名字。他举起手。他有点喘不过气。他拿出呼吸器。他对着呼吸器吸了一口气。这让他呼吸顺畅了些。他拿出笔记本和钢笔。教授开始讲课。他做笔记。他总是在课堂上做笔记。这是个好习惯。课后他会对着笔记学习。他是个好学生。他只想拿到高分。