Horizons: a four-level course for secondary students Easy to use and easy to learn from, Horizons motivates students and gets results. Interesting contexts, real language, clear explanations and thorough practice give students everything they need to speak, read, listen and write successfully.
Unit 1 Will/Adverbs expressing certainty may, might
Unit 2 Must/Have to/Don't have to
Unit 3 First conditional/When, as soon as, unless/Defining relative clauses
Unit 4 Must, May, Might, Could, Can't/Non-defining relative clauses
Unit 5 Could, was/were able to, managed to
Unit 6 Present perfect each,every, all
Unit 7 Present perfect continuous/Adjectives and prepositions
Unit 8 Make, do, get/Present simple passive