问题
选择题
In , when he was in , he went abroad to study in America.
A．the 1980s; his twenties
B．1980s; the twenties
C．the 1980s; the twenties
D．1980s; his twenties
答案
答案：A
本题的含义为在20世纪80年代，当他20几岁的时候，他出国到美国学习，in the+年代的复数表示多少世纪多少年代的含义，in one’s+20以上整十的复数表示几十多岁的含义，本题中in his twenties表示20几岁的含义，故本题选A。
