句子.改为一般疑问句,做肯定否定回答,并改为否定句My brothers can play-ping-pongMy sister has some pens

1.Can your brothers play ping pong?
Yes, they can . \ No,they can't .
Your brothers can't play ping pong.
2.Does your sister have any pens?
Yes,she does . No ,she doesn't.
Your sister doesn't have any pens.

疑问：Your brother would play ping-pongit?肯定回答:yes,he can.
否定句:my brothers not can play ping-pong.
疑问:Your sister has a lot of pen?
肯定回答:yes,she has.
否定句:my sister not has some pens

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