Why did the United States enter World War I?

接受的答案

1. Because Germany attacked U.S. (civilian) ships
2. To support the Allied Powers (England, France, Italy, and Russia)
3. To oppose the Central Powers (Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria)

来源: USCIS 2025 Civics Test (M-1778 (09/25))

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