the doctor checked up both wang's hrarts
问题描述：
the doctor checked up both wang's hrarts
Afather-in -law's and his brother-in-law's
Bfather's-in-law and his brother's-in-law
cfather-in-law and his brothrt-in-law's
D father-in-law's and his brother-in-laws'
答
C
考察名词所有格的用法