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 |
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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 |