Grammar in use : intermediate (2000)

Fourth edition, 2018 The American counterpart to English Grammar in Use, written for intermediate learners at B1 to B2 who are aiming at American English: someone heading to a US university, working with American colleagues or simply hearing more US English than British. It keeps the same self-study approach of simple explanations and plenty of exercises. Extra pages of Additional Exercises mix points together, which is where learners find out whether they can actually choose between two structures. Check the cover before buying: it is sold both with and without an answer key, and only the first suits study on your own.