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E.l. Easton: English Online: Exercises, Quizzes, Tests
Explore this resource that directs you to various (primarily free) sites where you can create your own exercises, quizzes, tests and more. There are also links to peruse the topics for already developed exercises. There are also...
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Testmoz: The Test Generator
Generating a test for your class can be done in about a minute with this easy to use interactive tool that features four types of questions, automatically grades, and can create detailed reports.