Do not you k() how to eat?

Do not you k() how to eat?
Do not you k() how to eat?

Do not you k() how to eat?
know

Do not you k(now) how to eat?

know

应该填know 翻译： 难道你不知道怎样吃吗？ 学习进步哦！

应该是 know，但这是个如果是Know的话感觉有语病...应该是Do you not know how to eat