What haven't you told me?
你还有什么要告诉我的吗？
Is there something you are not saying?
你还有什么要说的吗？
Is there anything else you want to add?
你还有什么想要补充的吗？
Whatever you are thinking is OK with me.
无论什么想法都可以对我提出来。
Any comments will be appreciated.
对于任何意见我们都不胜感激。
Any ideas will be fine.
任何想法都可以提出来。
I'd like to hear as many ideas as possible.
我想听到尽可能多的想法。