John Sutherland, one of Britain's most celebrated professors of English literature, is here to test, stretch, amuse and instruct you with his definitive quiz on all things grammatical.Why do purists insist that 'television' is wrong while telephone is correct?Was Bill Clinton taking risks with language as well as his presidency when he declared, 'I did not have sexual relations with that woman'?And can the use of 'ain't' ever be defended, especially when there's no sunshine when she's gone?This is neither a rule book nor a primer but a rollercoaster ride through the mysteries and magic of the world's greatest language.