词语运用（10小题，每小题1分，共10分）
阅读短文，从方框中选择适当的词并用其正确形式填空，使短文意思通顺、完整。请将答案写在短文后相应题号的横线上。每空限填一词，每词限用一次。方框中有两个词是多余的。

before, look, friend, many, improve, home, subject, your, take, family, by, high

It’s very common for students’ marks to fall. Sometimes it is because of situation outside school, such as problems at  . Sometimes it is only because the exams get harder.
When your marks start to fall, you should try talking to a    teacher. He or she will be able to help you with the    you find difficult. Stop comparing    with other people. It does not matter if other students get     marks than you. What is important is that you do your best.    each exam, you should go through your notes from class. You should remember the most important things you have written in a shorten form.
  through your shorter notes again just before the exam. You will be surprised when you find you remember so much. It may   hard work and your marks may not   straight. But let your confidence rise   every mark. Soon they should begin to climb again.