试题题干
In ( ), Native Americans who were not yet US citizens were granted citizenship by Congress.
参考答案
正确答案：
试题解析
本题考查非美国公民的美国原住民获得公民身份的时间。
In 1924, Native Americans who were not already US citizens were granted citizenship by Congress.
1924年，还不是美国公民的美国原住民被国会授予公民身份。
故选择C选项。