2010年12月英語六級聽力練習三十八

Most people know what a hot dog is. It's a sausage in a roll. But do you know why it's called a hot dog? Well, the long red sausage ____________ a Frankfurter.
 

It got its name from the German town Frankfurt. The sausages were very popular, but hot frankfurters were difficult to sell in crowds One man, Harry Stevens, _____________in baseball games. He had an idea. Why not put the frankfurters in long, hot bread rolls?This made them easy to sell.  

The “red hot" ________________and became very popular. But in 1903, an American cartoonist drew a long German sausage dog in place of the frankfurter so a frankfurter in a roll soon became known as a “hot dog". It was a joke, but some people really thought the sausages contained dog meat. For a while,sales of hotdogs failed, but not for long.