The popular principal would often demur on changing longtime school policies.
Wilson likely expected Congress to demur on the subject of the League of Nations, but he underestimated the opposition he would face.
The young lady smiled demurely when the young man handed her a rose.
Demure means shy or coy. Modest is a similar word to demure. "The shy girl demurely sat in the back of the class, hoping to not get noticed."
i do not know how to use embalming in a sentence. (there is the sentence)
So- you are asking when to use 'when' in a sentence. When you are asking how to use when in a question, you are already using when in a sentence, because a question actually is a sentence. I like to use when in a sentence whenever I like.
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