He served in the army in when he was in .
- A.1940's; his twenties
- B.1940's; the twenties
- C.the 1940's; his twenties
- D.the 1940's; the twenties
答案
正确答案:C
知识点:概数

in the 1940’s/in the 1940s“在二十世纪四十年代”,the不能省略,in+one’s +逢10的复数数词:在某人几十岁时。故选C。

略
