Why don't you ask your parents for help?(改为同义句）Why don't you ask your parents for help?( 改为同义句）_____ ________ ask your parents for help?

Why don't you ask your parents for help?(改为同义句）Why don't you ask your parents for help?( 改为同义句）_____ ________ ask your parents for help?
Why don't you ask your parents for help?(改为同义句）
Why don't you ask your parents for help?( 改为同义句）
_____ ________ ask your parents for help?

Why don't you ask your parents for help?(改为同义句）Why don't you ask your parents for help?( 改为同义句）_____ ________ ask your parents for help?
应填 Why not
why not 意思是"为什么不呢'' 一般用在疑问句中,表示提建议.
why not 后面要跟动词原型.
下面举一个例子:Why not have a picnic this afternoon?今天下午去野餐怎么样?
why not ＝why don't you二者用法是完全一致的,可以相互转化．

Why not