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- Merlin knows when to wait. 梅林知道什么时候该等。
- A thinking person knows when to speak and when to keep silent; when to act and when to wait. 聪明人知道何时该说话，何时该保持沉默；何时该行动，何时该等待。
- I am sorry I do not know when to get off. 对不起，我不知道什么时候下车。
- She never seem to know when to say when. 他似乎从来不知道适可而止。
- A good negotiator know when to make a compromise. 一个好的谈判者知道何时作妥协。
- Vogel knows how to pass and knows when to pass. 沃戈尔善于把握传球的路线和时机。
- I'll write so that he may know when to expect us. 我要写信好让他知道我们什么时候到。
- I'm sorry I don't know when to get off. 对不起，我不知道什么时候下车。
- He doesn't know when to stop once he gets on music. 他一旦谈起音乐，就会说个不停。
- I do not know when to shut down ware. 我不知道什么时候关机器。
- Do you know when to keep silent? 你知道什么时候该保持沉默吗?
- Do you know when to start off tomorrow? 你知道明天什么时候出发吗?
- Do you know when to tip and how much to give? 你知道何时该给小费以及该给多少吗?
- How does a client know when to call the End method? 客户端如何知道何时调用End方法呢?
- They know when to defend what they are doing. 他们知道什么时候为他们所做的事情辩护。
- You know when to spritz, when to lay back. 你知道什么时候需要动，什么时候需要静。
- Nobody told me when to (leave).I had to wait for a long time. （每个单词限用一次，所给单词中有两个为多余选项。）
- How you know when to place an order? 您是如何知道订购的时间的?
- He does not know when to speak before strangers. 他不知道什么时候在陌生人面前讲话。
- Know when to make a stand when it's needed. 知道必要的时候要表明立场。
