depends on the version you purchased. Modern editions typically use a digital access code for the Cambridge One
Search for "Cambridge Discovery Education Interactive Readers" or the specific "Grammar in Use" app in the Apple App Store or Google Play Store. basic grammar in use 4th audio install
Some specific versions (like the Japanese Edition) allow for a of MP3 files. depends on the version you purchased
It is 10:00 AM. Anna is late for her meeting downtown because her house is near the center, but the traffic is heavy. Her keys are usually on the table, but today she can't find them. It is sunny today, but it isn't very warm. She sees her friend Chris across the street. "Look! There's Chris," she says. How to Use the Audio Installments basic grammar in use 4th audio install