Cosmic B1 Grammar book provides: Full explanations of the grammar from each unit of the Students' Book All grammar from the Students' Book thoroughly recycled and extended Get it right! sections in every unit to focus on correcting common grammar mistakes Let's chat! sections to help students activate grammar Review sections after every two unit Vocabulary Extension sections Vocabulary wordlist for reference Irregular verb list Photocopiable Grammar Tests for each unit in the overprinted teacher's edition.