In order to finish the research, the professor always ______, for every day the light in his room di

题目简介

In order to finish the research, the professor always ______, for every day the light in his room di

题目详情

In order to finish the research, the professor always ______, for every day the light in his room didn't go
out until 4 a.m.

[     ]

A. mixed up
B. cleaned up
C. turned up
D. stayed up
题型:单选题难度:中档来源:0110 期中题

答案

D

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