SkyNews - if you are not familiar with Canada's magazine of astronomy and stargazing, please browse around the site. You might want to start with a peek at our current issue or some sample articles by Terence Dickinson, Alan Dyer and Ken Hewitt-White. SkyNews has plenty to offer the astronomy buff.
"It is aimed mainly at learners preparing for the IELTS or TOEFL tests. How to write argument and opinion essays - step-by-step. With sample answers. "
Unbeatable test prep for the more than 150,000 students who take the GMAT
The perfect math-refresher, McGraw-Hill’s Conquering GMAT Math gives you in-depth practice and intensive review for every type of math problem on the GMAT. This book provides a comprehensive overview of every test topic through sample exams and answered problems that increase in difficulty—helping to build conceptual and problem-solving skills.
ECL Practise exam tests for Intermediate students. Reading, writing, listening and speaking tasks. Hungarian Edition (Foreword) but English sample tests, of course.