_____around the clock for two days，he managed to finish the report for the manag

题干

_____around the clock for two days，he managed to finish the report for the manager on schedule．

A．Working	B．Worked
C．Having worked	D．To work

上一题下一题 0.64难度单项选择更新时间:2015-03-10 08:05:43

小学学科试题库

初中学科试题库

高中学科试题库