According to the passage, what did the Chinese use to make the “original” ice cream? A. A frozen mixture of milk and egg. B. A frozen mixture of water and egg. C. A frozen mixture of milk and rice. D. A frozen mixture of water and rice. 2. According to the passage, why did scholars and historians of ancient China think that playing cards were the first form of paper currency? A. Because only cards were often traded when betting. B. Because both money and cards were often traded when betting. C. Because it was popular among the royals. D. Because there were characters from novels printed on the cards. 3. According to the passage, when the English explorers got their hands on the recipe of ketchup, what did they do with the recipe? A. They added tomatoes and peppers. B. They added anchovies and spices. C. They added spices and pickled fish. D. They added tomatoes and anchovies. 4. How was the first waterproof umbrella made? A. It was made by tying palm leaves to sticks. B. The ancient Chinese took silk umbrellas and coated them with lacquer and wax. C. It was made with lotus leaves and sticks. D. They tied palm leaves to sticks, then covered the leaves with wax. 5. According to the passage, what did ancient Chinese not use to make nail polish? A. Rubber. B. Egg whites. C. Beeswax. D. Dyes and gelatin.