There are free study materials on the College Board website, including practice tests.

美国大学理事会官网上有免费的学习，包括模拟题。

And to review my study materials, I even recorded some of my speaking responses to practice for this interview.

为了复习我的学习材料，我甚至录下了我的一些口语回答来练习这次面试。

Here are last week's study materials.

这是上周的教学笔记。