问题补充:
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. the 1980s; his twenties
B. 1980s; the twenties
C. the 1980s; the twenties
D. 1980s; his twenties
解析: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。