单选题
It is known to us that English is not as old as Chinese, but it is widely used by most people all over the world. English speakers enjoy creating new words. In fact, a majority of words are traceable and each of them may have an interesting story. However, no one will really care where a word comes from because it makes little difference in using them in our daily life. Did you ever feel confused about why hamburgers are called hamburgers, especially when they are not made with ham? About a hundred years ago, some men went to American from Europe, coming from a big city in Germany called Hamburg. They didn' t know how to use English properly. Seen them eating round pieces of beef and asked what it was, the Germans didn' t understand the questions exactly, they answered: "we come from Hamburg. "One of the Americans was an owner of a restaurant and got an idea. He cooked some round pieces of bread with beef and began selling them. Such bread came to be called "hamburgers". Today, hamburgers are welcomed by lots of people coming from different nationalities.