This powerful online resource offers 1,001 practice questions that will help you polish your English grammar skills. The course starts with the basic tricks of the grammar trade to help you communicate effectively, before moving on to subject and verb agreement, pronouns, sentence construction, and much more. All practice questions include answers as well as detailed explanations. With on-the-go access, you can study anywhere and any way you like—from your computer, smart phone, or tablet. These questions—categorized as easy, medium, and hard—let you track your progress, see what you need to study most, and then create customized question sets to get you where you need to be.