Choose the correct answer to fill in each of the blanks in the passage.
Imagine a world without delicious, sugary doughnuts. It would be a sad place! Doughnuts have put a smile on the faces of a lot of people. Some of those people were immigrants to the United States in the late 1800s and early 1900s. (14) __________ they arrived at Ellis Island, volunteers handed out doughnuts. For many immigrants, it was their first taste of America!
American immigrants weren't the only people (15) __________ enjoyed doughnuts. During World War I, volunteers handed out millions of doughnuts to American soldiers in France. The doughnuts reminded the soldiers (16) __________ home. Once the war ended, soldiers wanted even more doughnuts! But who could make enough to (17) __________ the demand?
Adolph Levitt was an immigrant to the United States. He owned a bakery in New York City. He thought of a way to (18) __________ many doughnuts with a machine. This was the first doughnut machine in the world. Levitt began (19) __________ doughnut machines to many shops and made millions of dollars.
