For a long time there were _____

For a long time there were _____ states, then in 1959 Alaska and Hawaii became its states.
A、47
B、48
C、49
D、50
【正确答案】：B
【题目解析】：答案选B。For a long time there were forty-eight states, then in 1959 Alaska and Hawaii became the forty-ninth and fiftieth states.参见教材P176。
掌握“Location and Size(USA)”知识点。