I've been working extra hard lately.什么时态?

I've been working extra hard lately.什么时态? I've Been Working on the Railroad 歌词 I've been working hard for a whole year. I've been working here for seven years.同义句转换.I've been working here ___ ____ ____ ____. I've been working here for seven years.(改为同义句）句式：I‘ve been working here －—　——　—－　—— i've been working out the gym since january的正确解释及分析 I think you've been working too tired,my dear中文意思 I've been expecting I've been cryin Ive been to I've been filming. I've been working at the same job for years..I've been working at the same job for years and it's not at all rewarding .翻译一下`` 18.I’ve been working all day,but I feel as if I _______ nothing.A.have been achieved B.were achieving C.had achieved D.am achieving 请翻译英语诗歌《I've been working on the railroad》I've been working on the railroad All the live-long day I've been working on the railroad Just to pass the time away Can't you hear the whistle blowing? Raise up so early in the mom C I've been to me I've been waiting for i've been referred to I've Been Waiting 歌词