he can paint she can sing I can dance改否定句,疑问句,再肯定回答和否定回答

否定句：he can't paint ; she can't sing ; I can't dance
一般疑问句:can he paint can she sing can you dance
肯定回答:yes ,he can ; yes ,she can ;yes,i can
否定：no ,he can't ; no ,she can't ; no ,i can't
以后句子 之间打标点好吗?