谁来帮我看语法对不对、用词对不对

谁来帮我看语法对不对、用词对不对
Who didn't have much homework in high school?Class begin,do homework,have got some certificate exam,than “Use your time well” is the most important thing i have learned at high school.Use well,can efficiently learn;use won't,cause make a mess.So a good allocation strategy should be adaptive,this way high school will be able to play and study.
我的英文很糟糕，常常都是靠翻译机来的……中文也不怎么样。
上课，还要面临许许多多的证照考试，我认为「善用时间」是我在高中学到最重要的事情。分配的好，不仅可以提高学习效果更能使成绩有明显的进步；应用不能则会使得任何事都做不好，无法有效吸收上课内容。一个良好的分配策略应适应每个人的习惯，如此才能成为一个能把书读好还能玩得愉快的高中生。