<p><strong>Student's book</strong>: https://online.flipbuilder.com/sdtta/zdjj/mobile/index.html#p=1</p><p><… (to assign homework for students or to revise the knowledge in class)</strong>: https://online.flipbuilder.com/sdtta/ewpl/</p&gt;

<p>Audio: <a href="https://drive.google.com/drive/folders/1w10t1VqNN7XOzintPdmttaPDB5PH7IX…;