The eldest son（ ）an outsider when he talks about providing for his old and sick parents.
A、
seems
B、
looks like
C、
sounds like
D、
appears
【正确答案】：C
【题目解析】：
后文说当他谈起...的时候，所以应该是听起来像，A.seem：似乎；B.look like：长得像；C.sound like：听起来像；D.appear：出现，选C。句意：当长子谈到供养年迈生病的父母时，他听起来像个局外人。