Hello<br/><br/>I've found few excersises as pdf files. I'm trying to identify the name of this grammar book: <a href='http://havocvulture.wrzuta.pl/obraz/1vs4Y125axu/gramatyka' target='_blank' rel='nofollow'>http://havocvulture.wrzuta.pl/obraz/1vs4Y125axu/gramatyka</a> <br/><br/>Thank you in advance for help