为了考试，你可以说以下英语句子：

1. I am studying for the exam.

2. I am preparing for the exam.

3. I am brushing up on my knowledge for the exam.

4. I am reviewing my notes for the exam.

5. I am studying hard for the exam.

6. I am making flashcards for the exam.

7. I am taking practice tests for the exam.

8. I am staying up late to study for the exam.

9. I am using study guides for the exam.

10. I am discussing topics with friends for the exam.

这些句子可以帮助你表达你正在为考试做准备的意思。