Students have been asking me to make sheets that teach components of my authentic British English style for the past few years - I have been very busy, but finally got around to making some!
Right now it is at a reduced price, so why not get it for cheap while you can!?
If you want to sound like a real native, British English speaker - idioms are ESSENTIAL!
And sadly they are rarely taught in the textbooks.....
P.s - I also have a sheet of 51 Commonly-Used Phrasal Verbs if you are interested!!!