Teach with confidence, using the world's favorite English course. Interchange is a four-level, American English course that has been used by over 50 million students worldwide. This Level 3 Student's Book includes 16 units, eight progress checks, and a Grammar Plus section to ensure that students receive all of the practice they need. Inside each book is a single-use code for online self-study material. This gives access to videos and hundreds of automatically graded exercises, and works on PCs and Macs.

退換貨說明：

會員均享有10天的商品猶豫期（含例假日）。若您欲辦理退換貨，請於取得該商品10日內寄回。

辦理退換貨時，請保持商品全新狀態與完整包裝（商品本身、贈品、贈票、附件、內外包裝、保證書、隨貨文件等）一併寄回。若退回商品無法回復原狀者，可能影響退換貨權利之行使或須負擔部分費用。