Essential Grammar in Use
Murphy, Raymond

English Grammar in Use Supplementar
Hashemi, Lousie

English in Mind 3 Teacher's Book
Puchta, Herbert / Stranks, Jeff

Import Export
Hollett

Did you catch that?
Berman/Fischel

English für Fortgeschrittene
Telekolleg II

Good, better, perfect!

The New Cambridge English Course 2
Swan, Michael/Walter, Catherine

Keep it up! 1 7./8.Klasse
Mentor Lernhilfen Englisch

A Commercial Course
Eckersley/Kaufmann