student asking question

What is the role of "up" in this sentence?

teacher

Native speaker’s answer

Rebecca

The word "up" in this sentence means "awake." So when she says "Donald, what are you doing up at this hour?", she is asking why are you awake and not asleep. Another example of "up" being used in the same context would be: "She was up late last night."

Popular Q&As

03/29

Complete the expression with a quiz!