Mr.Smith began to learn painting _____ his sixties
问题描述:
Mr.Smith began to learn painting _____ his sixties
A.in
B.of
C.at
D.over
选哪个?为什么?
答
A
in+one's+几十岁的复数表示在某人几十多岁的时候
上句的意思是史密斯先生在他六十多岁的时候开始学油画