问题
选择题
— 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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— 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