问题
选择题
单项选择（每题1分）
—Look, John’s fallen asleep at work!
—Oh, he must have _____ late last night.
A．waken up
B．put up
C．taken up
D．stayed up
答案
答案：D
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单项选择（每题1分）
—Look, John’s fallen asleep at work!
—Oh, he must have _____ late last night.
A．waken up
B．put up
C．taken up
D．stayed up
答案：D