He is a wise boy. Is the library open Sundays? B: Of course Ladies and Gentleman, I'm delight to introduce you a very pretty girl Miss Brown. She is a very good teacher from U SAEnglish Lexicology(I) 5 ◼ He is a wise boy. ◼ A: Is the library open Sundays? B: Of course. ◼ Ladies and Gentleman, I’m delighted to introduce you a very pretty girl, Miss Brown. She is a very good teacher from U.S.A