ATHENS 100 Series: Grammar Elect is a 12-book series written for students to learn and revise the grammar items covered in the Primary English Curriculum and major textbooks used in Hong Kong. Key Features ● 18 units of grammar exercises modelling on frequently tested question types in school tests and exams ● Grammar Station providing easy-to-follow grammar notes and typical examples ● Progressive exercises consisting of contextualized grammar practice ● 2 Revision and 1 Final Revision exercises tailored for pre-exam practice ● Proofreading and Challenging questions designed for smart learners ● 16 Revision Cards extracting key grammar points ● Answer Key with smart tips and Chinese explanations