my brother is pens yellow否定句和一般疑问句和yellow划线提问

问题描述:

my brother is pens yellow否定句和一般疑问句和yellow划线提问

my brother's pens isn't yellow
does you brother's pens yellow?
what colour does your brother's pens?

is和pens的复数怎么可能同时出现
原句究竟是什么?搞得连楼上那位的答案也都错了

my brother's pens aren't yellow.
are your brother's pens yellow?
what colour are your brother's pens?