Language Links Pre-intermediate with Answers: Grammar and Vocabulary for Reference and Self-Study by Adrian Doff
A unique approach combining grammar, vocabulary and phrases to give students the range of language they need to communicate effectively. To talk about money, for example, you not only need vocabulary (credit card, bill, receipt), but also verb forms (I paid, I bought, It cost) and phrases such as Can you lend me...?, Can we have the bill? Special links between units direct you to related language areas, allowing you to choose your own learning path through the book and progress at your own pace. This pre-intermediate book, with answers, is ideal for self-study.