试题详情
单项选择 适中0.65 引用1 组卷169
______ around the clock for two days,David managed to finish the report for the manager on schedule.
A.WorkingB.Worked
C.Having workedD.To work
14-15高三下·安徽安庆·阶段练习
知识点:现在分词作状语现在分词的完成式:having done 答案解析 【答案】很抱歉,登录后才可免费查看答案和解析!