单选题 The writer became well-known in
[A] his thirties in the 1980s [B] the thirties in his 1980
[C] his 30s in 1980s [D] the thirties during the 1980

【正确答案】 A

【答案解析】[解析] in one's thirties在某人三十多岁时，in/during the 1980s意思是“在20世纪80年代”。