English Test, Exercise & Quiz
Through the tests, you can also improve your English very quickly
NonstopEnglish.com is a free database of exercises for students of English as a foreign language. Practice your English to pass TOEFL, Cambridge First Certificate, Cambridge Advanced English and other internationally accepted examinations. Try some of the exercises and you will see how useful and funny they are and how quickly you can improve your English to achive your goals and pass exams.
Quiz list from The Guide to Grammar and Writing. A long list on grammar, vocabulary tests
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