Improve Your English C1

Demetra

Improve your English. Livello C1                

Demetra

Improve your English livello B2                  

Demetra

Improve your English livello B1                  

Collins

Vocabulary: C1                                  

Next Level English C1 Advanced: 50 lessons to improve your English conversation: Real-world vocabulary and grammar for speaking success (English Edition)

Hueber

Destination C1 & C2 Grammar and Vocabulary. Student's Book with Key

Future House Languages S.L

Activate Advanced C1: A Complete Self-Study Course

CBL

English in the News: Real-life Vocabulary in Use and Collocations for B2/C1 Students

Pearson Education

Cambridge English Qualifications: C1 Advanced Volume 1 Practice Tests Plus with key [Lingua inglese]

Future House Languages S.L

Activate Upper-Intermediate B2: A Complete Self-Study Course: Improve your English level in all the skills and pass your Cambridge B2, IELTS, Trinity or ... (Activate Your English™) (English Edition)