As an instructor I was given a free evaluation pass for Grammar in Use by Cambridge University Press. This is an online version of one of CUP’s best seller, English Grammar in Use. I would recommend it to all of my students for several reasons
1- Incredibly high quality visuals
2- Very appealing and easy to navigate through user interface
3- A large number of exercises after each topic
4- Exercises are also available in audio format (this is very important)
5- Simple explanations about engaging topics (for instance the book had a very nice explanation of the grammar differences between American and British English)
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