It covers more grammar topics than the online version.You can view it on your desktop as an easy reference guide. It is easy to print out pages from this version using any standard printer. You can access regular updates to the Online English Grammar now that you have purchased this copy. All that is required is that you supply your username and password to begin the download. You will receive regular emails when new updates are available. The update subscription is valid for one year from the date you purchased the item from us。

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