Recently he ________ every night until after one o' clock, preparing for the final exam.
A、shows up
B、show off
C、stays in
D、stays up
【正确答案】：D
【题目解析】：【答案精解】D。句意：为了准备期末考试，近来他每天夜里熬到凌晨一点。本题考查的是相关动词词组的词义辨析。show up揭露，露出，露面；show off炫耀，显耀；stay in在家，不外出；stay up熬夜，不睡觉。
