My brothers can play ping-pong
一般疑问句Can your brothers play ping-pong?肯定 回答yes they can ,否定回答No ,they can't否定句 MY brothers can't play ping-pong
My sister has some pens
一般疑问Does your sister have any pens 肯定 回答yes,she does ,否定回答No ,she doesn't 否定句 My sister doesn't any pens