English Grammar Style
Utz

English Verbs and Tenses
Bourke, Kenna

Living English Structure
Allan, W.Stannard

Offenes Lernen
Zekl, Claudia

The Ratification of the Constitutin
Schrag

Aufbaukurs Wirttschaft
Hoffmann

Englisch for You 1
Ribitsch, Horst

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

English Preposition Idioms
Wood

Practice in Text Analyasis