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。

Everyone has much homework in high school.
We usually have to have classes,do homework,and take some examinations.
Use your time well is the most important thing for me to learn at high school.
If you do an effective work,you will be twice as much can be accomplished with half the effort;
if not,you will get half the results with twice the effort.
So when you have an effective allocation,you will make rapid and brilliant progress in your studies.
This is a way for high school students to be play and study.
根据原文重新写了一下,仅供参考
建议：时态首先要保持一致,语法运用要合理,连接词运用要适当