Directions: People in modern society live under a lot of pressure, from education, career, or family. So it is important for them to keep a good mood under whatever circumstances. Write a composition of about 200 words on the following topic: The Importance of Keeping a Good Mood. You are given the following outlines in Chinese and are required to write no less than 150 words. Remember to write clearly.
现代社会压力增大，保持好心情很重要；为什么要保持好的心情；保持好的心情也是成功的保证。
卧室布置得好坏会影响人的心情。如果卧室内干净、整洁，那么清晨醒来时，你会拥有好心情。相反，如果卧室布置得十分杂乱，醒来的一瞬间你会感到无比压抑，那么一整天的情绪都会非常糟糕。
A、布置卧室相当花费时间
B、卧室是家中最整洁的房间
C、一张舒适的床对睡眠很重要
D、杂乱的卧室会让人心情变差