This book will help you learn grammar rules, speaking and listening. Furthermore, if you are a teacher, then there is also the teacher for you can use so that you know how to manage your class quite well. At right this place, you can download three of them all together; teacher book, student book, and workbook.
This book is particularly good for those of you who are working as a travel agent, a tour guide or working in a hotel. And there is also CD so you can listen and practice anytime you wish to. Don’t need to hesitate. Just get it free for yourself.