Focus Business 2 Testing Material
Breen, Kieran

People and Places

Offenes Lernen
Zekl, Claudia

English in Mind 2 Teacher's Book
Puchta, Herbert / Stranks, Jeff

Living Englisch Structure Answer Ke
Allen, Stannard W.

Aufbaukurs Wirttschaft
Hoffmann

Modal Auxiliary Verbs
Plass, Doris C.

The Art of Teaching English
Morris

B for Business Instructor's Guide
Cullen, William ua

Advanced Exercises in Grammar 2
Thomson, A.J./ Martinet A.V.