• BBI teaches you how to combine words with words to form phrases (so you can say "mortgaged to the hilt; I want something badly"). • BBI also teaches you how to combine words into structures to form clauses and sentences (so you can say "I want you to go = What I want is for you to go"). • So BBI helps you with both vocabulary and grammar. • BBI shows you important vocabulary and grammatical differences between American and British English. • BBI gives you plenty of examples that can serve as models for your own use of English. • Some of these examples are authentic quotations from works of American and British literature.