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

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18.I’vebeenworkingallday,butIfeelasifI_______nothing.A.havebeenachievedB.wereachievingC.hadachievedD

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
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

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
C.我整天都在工作,但我觉得自己似乎什么也没有得到.have been working持继状态,work是发生在说话前的动作 achieve是发生成work之前的动作,所以用过去完成时态had achieved