My father told me a story that European woman helped him a lot when he was in America in

My father told me a story that European woman helped him a lot when he was in America in 1970s.
A. a; the
B. an; /
C. the; the
D. an; the

(答案→)A. a; theB. an; /C. the; theD. an; the解析：考查冠词。第一空泛指一位欧洲女性，European是以辅音开始，所以用a;第二空固定结构in the 1970s在20世纪70年代。

这个问题我还想问问老师呢