Azar-Hagen Grammar - (AE) - 5th Edition - Student Book with App - Understanding and Using English Grammar

Tuve la versión 3 hace muchos años. Adoraba el. Libro hasta que se me perdió. No pude evitar tenerlo de vuelta. Sin duda se nota que se ha actualizado desde que lo tuve. Me parece confuso sin embargo xq hay tantas versiones en Amazon de este mismo libro, no logro entender la diferencia entre ellos.

it is really useful for somebody who wanna learn English

I gave 3 stars because this book has two flaws. 1. In the 5th edition, some new added content are not edited. Some exercise sentences are not accurate. Some multiple choice questions' options have nothing to do with the questions. 2. In the Online resource, answer key for the student book is not provided. So you need to buy another teacher guide book to get student book's answer key. The most annoying thing is at the back of the book cover, it clearly says student answer key is provided in the online resource. Moreover, even if you are ok with spend another 90 AU dollars to buy the teacher guide book just for the answer key, you probably couldn't find it online because It is the newest edition. The online resource and content in the online resource is very useful and worth the price, even for self-study students.

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