Grammar -- Study and teaching 17 English language -- 15 German language -- 11 Glossaries, vocabularies, etc 6 Study and teaching (Intermediate) 5 Vocabularies 5 more ... Foreign speakers 4 Study and teaching -- 4 Conversation 2 Dictionaries -- 2 English language 2 Pronunciation 2 Study and teaching (Elementary) 2 Language art (Elementary) 1 Self-preservation 1 Study and teaching (Early intermediate) 1 Study and teaching (Upper intermediate) 1 Textbooks 1 less ...