我们知道：笑脸有多种：微笑、嘻笑、奸笑、哭笑、哈哈大笑、皮笑肉不笑……

    笑还引申出笑谈、笑话、笑柄、笑星、笑剧……

    笑逐颜开、笑容可掬、笑哈哈、笑眯眯、笑嘻嘻……笑是人的本能。

    笑是关切、友善、自信、成功；笑能化解矛盾，融化愁绪。俗话说：笑一笑，十年少。英文中亦有这样的说法：Laughter is the best medicine．（笑是最好的药）。据说医院有“大笑疗法”，笑到病除。

    笑比哭好。人们总是祝愿天天开心，笑口常开。然而，有人整天或因工作繁忙、学习紧张，或因生活奔波、家庭不幸、身体病痛等原因忘记了笑。

    请以“笑”为话题，写一篇文章，文体不限，题目自拟，不少于500宁（诗歌不少于20行）。不要出现真实的地名、校名和人名。

    Mike is a middle school student. He goes to school from Monday to Friday. His home is about 5 miles from school. He usually walks to school. It takes him 30 minutes to walk there. Nancy's home is a little farther. It's 20 miles from school. So she often takes the school bus. It takes her 15 minutes to get to school. Bob lives outside the city. It's a town 30 miles away from his school. He takes the subway. It takes him 8 minutes to get to school by subway. He can have breakfast at home and then leave for the subway station. He studies very hard.