MyGrammarLab Intermediate B1/B2 with Key (Longman Learners Grammar)

The best grammar book I have come across. Excellent on all accounts, interesting format for exercises (i.e. it's not all gap fills as with most grammar books, but has a lot of exercises with comparative formats where you/your students will need to think of why they choose this grammar, rather than merely concentrating on the form. All-around success: well-explained and accurate grammar, brilliant graphics, pictures and colours.. i'd definitely recommend it! As I would the Elementary and Advanced versions!!

it delivered very fast and quality is perfect!

For English learners is really useful but I can not use it online don't know why

Arrived as mentioned date!