when he was retired and went back home in___ he was already in_____.A the fifties his sixtyB fifties his sixtiesC the fifties his sixtiesD fifty sixty
问题描述：
when he was retired and went back home in___ he was already in_____.
A the fifties his sixty
B fifties his sixties
C the fifties his sixties
D fifty sixty
答
his sixties
人称后面接复数表示他在多少年龄段~固定搭配
the fifties应该是50年代的意思