单选题 In the nineteenth century, moving from crowded Britain to relatively sparsely populated North America were seen by many British as an actof patriotism.

【正确答案】 C

【答案解析】答案： C were>> was 分析：were改为was，moving单个动名词的动作做主语，谓语用单数翻译：１９世纪，从拥挤的不列颠迁移到人口想对稀少的北美没许多英国人看作是一种爱国主义行为。