Most genuine PDFs come with a separate audio download link (or QR codes in the book). If your PDF is legitimate, it will have a password or a link to access the dialogue MP3s. Reading Chinese without listening creates "character deafness." Listen to each dialogue three times: once without looking, once while reading the PDF, and once while reading aloud.
, often used in immersion or K-12 advanced tracks. It uses a "spiral progression" to build listening and speaking skills. Princeton Language Program : Includes titles like A Trip to China Intermediate Reader of Modern Chinese