English Vocabulary in Use
McCarthy, Michael u.a.

In At The Deep End
Hollett, Vicki

The Art of Teaching English
Morris

Britain 1982

Focus Business 2 Testing Material
Breen, Kieran

Lernhilfe Englisch 1
Wimmer, Reinhart

Business Builder Modules 7, 8, 9
Emmerson, Paul

Guided Course
Jupp/Milne

English Tenses
Schomaekers, Hiltrud

If-Clauses & Co Die Nebensätze
Groß, Achim