We use the Present Perfect to say that an action happened at an unspecified time before now. The exact time is not important...
We use the Present Perfect Continuous to show that something started in the past and has continued up until now. "For five minutes," "for two weeks," and "since Tuesday" are all durations which can be used with the Present Perfect Continuous.....
English is spoken in different ways around the world. Spotlight Audio gives you not only American English and British English, but often Australian, South African, Irish and other regional forms of pronunciation in 60 minutes of interviews, exercises and dialogues connected to Spotlight magazine.
Better Vocabulary in 30 Minutes a Day offers a comprehensive method for adding a more impressive list of words to your everyday speech and how to use them effortlessly and accurately. Besides giving definitions, this invaluable guide provides roots, stems, and elements of words so that you can increase your vocabulary with thousands of new words. Sprinkled throughout the book are fascinating stories about words and origins.
"Battles, for all their madness, are worthy of study if for no other reason than that they are the crucibles of history," says Professor Fagan, who notes that a few hours of hard fighting can determine the fates of entire empires. 24 lectures of 30 minutes
