發送短信 : Grammar for Teachers: a guide to American English for native and non-native speakers

            _____     _____    _    _    _    _   
    ___    |  ___||  |__  //  | || | || | |  | || 
   /   ||  | ||__      / //   | || | || | |/\| || 
  | [] ||  | ||__     / //__  | \\_/ || |  /\  || 
   \__ ||  |_____||  /_____||  \____//  |_// \_|| 
    -|_||  `-----`   `-----`    `---`   `-`   `-` 
     `-`