他们的消息你一点都不知道吗
“Don't you know anything about them?”
THE DIALOGUE REEL
你到哪里去了
“Where have you been?”
他们的消息你 一点都不知道 吗
“Don't you know anything about them?”
什么消息
“What news?”
“Never mind where I went—how can you possibly be completely in the dark about what happened to them?”
In high-stakes situations, answering a question with a more urgent counter-question shifts the conversational burden and signals that a bigger crisis is at hand.
LEARNING CHUNKS & PARTICLES
don't know at all / have no clue whatsoever
Uses the '一点都/也 + 不/没' pattern for total negation, emphasizing complete lack of knowledge.
Forms a yes-no question, here carrying a tone of surprise and pressing inquiry.