Listening to tongue-twisters is one way to improve your English pronunciation. It's too difficult to say tongue-twisters in English so don't worry if you can't do it properly at first, just have fun!!!
You try to tell the next tongue-twister:
IF TWO WITCHES WERE
WATCHING TWO WATCHES, WHICH WITCH WOULD WATCH WHICH WATCH?
But, first I'm going to show you the vocabulary:
NOW, IT IS YOUR TURN!!