PLUS A. 1 - Elementary - 120 Pages. Explains in English. Lots of practice - also an answer key is provided. Plus A 1 Common European Framework of Reference was prepared according to CEFR. Plus A1 is for Pre-Intermediate Learners of English. It helps students to learn true English and improve their reading-speaking and writing skills. Simple and Clear Explanations A large Variety of Graded Exercises Revision Tests Vocabulary Matching Exercises Quizzes- Puzzles Multiple Intelligence Exercises Reading Passages Dialogues. PLUS A. 2 - Pre-intermediate - 120 pages. Explains in English. Lots of practice - also an answer key is provided. Plus A2 Common European Framework of Reference was prepared according to CEFR. Plus A2 is for Pre-Intermediate Learners of English. It helps students to learn true English and improve their reading-speaking and writing skills. Simple and Clear Explanations A large Variety of Graded Exercises Revision Tests Vocabulary Matching Exercises Quizzes- Puzzles Multiple Intelligence Exercises Reading Passages Dialogues. PLUS B 1 - intermediate - 160 pages. Explains in English. Lots of practice - with answer key. The Common European Framework of Reference was prepared according to CEFR. Plus B 1 is for Intermediate Learners of English. It helps students to learn true English and improve their reading-speaking and writing skills. Simple and Clear Explanations - A large Variety of Graded Exercises Revision Tests - Vocabulary Matching Exercises Quizzes - Puzzles Multiple Intelligence Exercises - Reading Passages Dialogues. Plus B 2. – C 1. Upper - intermediate – Advanced. 160 pages Explains in English. Lots of practice - with answer key. The Common European Framework of Reference was prepared according to CEFR. Plus B 2. – C 1 is for . Upper - intermediate – Advanced Learners of English. It helps students to learn true English and improve their reading-speaking and writing skills. Simple and Clear Explanations - A large Variety of Graded Exercises Revision Tests - Vocabulary Matching Exercises Quizzes - Puzzles Multiple Intelligence Exercises - Reading Passages Dialogues.