an old ---the old the old固定用法,意思是,老人
visit to----去掉to visit是及物动词 ,应该直接接宾语
by do---- by doing by是介词,意思是,通过.的方式,介宾结构,应该把动词改成动名词 doing
other kind---other kinds 其他种类的家务劳动,这里种类得是复数
talk about--talk to 应该是和他们就交谈,talk to them talk about them就成了谈论他们了
81 82 没发现错误
talk them interesting stories----tell them.
help people need help----help people who need help
kind or useful----kind and useful