B4: Writing - Dynamic Charts (Unit 1)
<p>Bản chép tay: </p><p><a href="https://docs.google.com/document/d/1ukbqeYsJbZfSS1DhsdRqOFUeSomCIsBaUvc…;
B3: Advanced Grammar + Sửa bài tập B1+B2
<p><span style="color:#181a1b;">Bản chép tay:</span></p><p><a href="https://drive.google.com/file/d/1UbhHLaFTjkCfnYRmbKCww7lUKp18v351/view?…;