You can’t______ (燃烧) the candle at both ends.
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Some people like to set the alarm clock before going to bed so that they won’t______ (睡过头) in the morning.
I looked for my English book in my______ (背包), but it wasn’t there.
Sometimes, a person's whole life is easily changed by something______ (出乎意料的).
你曾经睡过头过吗?______ you ever______ ?