完形填空
Imagine （想象） walking into a movie theater without being greeted by the smell of popcorn. It's hard to believe, isn't it? For many people, popcorn goes hand in hand with movies. They can't have one without the other. But 1 did this happen?
The 2 between the two is younger than you may think. In the mid-1800s, popcorn was already a popular snack in America. Vendors sold it on the 3 . People, especially kids, loved this street food. In the early 1900s, vendors started to sell popcorn 4 movie theaters.
However, theater owners didn't like popcorn. They believed it would make the experience of watching a movie 5 enjoyable. Eating it would make too much noise during the silent movies.
Later, when movies added sound, the 6 noise problem went away. More and more people went to the movies. Some of them even secretly（秘密地） took popcorn into the theaters. Later, more movie theaters 7 . Some of them agreed people to eat popcorn while they were watching movies.
In the 1930s, the theater owners found that people didn't need to buy popcorn from street vendors. Because popcorn was 8 to make, they could make and sell it themselves. They did that and the smell of popcorn drew more people to their theaters. The 9 made a lot of money, and people enjoyed themselves at the movies.
Today, popcorn is still an important part of the movie-going experience. Roles, a man who once ate three bags of popcorn, said, "People come to theaters sometimes just for the 10 . They don't even care what is playing!"