Question

       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

Answer 1

C

考查虚拟语气，此题是与过去相反的虚拟语气，as if 后应用过去完成时态，句意：我整天一直在工作，但是我感觉好像什么也没完成。所以选C。