________Pierrebegantohelphisfather

发布时间：2020-07-11 20:30:52

________ Pierre began to help his father with the farm work when he was        












A.In 1980’s; his teens











B.At the 1980’s; the teens










C.In the 1980s; in his teens










D.In 1980’s; in the teens

网友回答

C解析“在二十世纪八十年代” In the 1980s，“在某人几十多岁时”in sb’+岁数名词的复数，所以
以上问题属网友观点，不代表本站立场，仅供参考！