This is lesson number 18 of my spoken English course: Tips on Spoken English. The lesson is in PDF Form, and it is illustrated in 20 pages including: questions and answers, additional information, family vocabularies, related words, slang terms, a sample conversation, idioms, proverbs and flash cards. This lesson is perfect for grades starting from upper intermediate up to university level , academic one, staff, home schoolers and all of those who want to improve their English speaking skills.