1. Do you remember these words?2. Reading3. Vocabulary (Payment terms. Sales Conditions)4. Grammar (Conditionals clauses)5. Listening5.1 Listening 15.2 Listening 2 6. Writing (Writing a proposal letter. A Contract)7. Speaking 7.1 Pronunciation (Why do not we? Roughly speaking)7.2 Situation (Sales transactions) 8. Key ideas 9. Links of interest