,——Hi,Tracy you look tired.____I am tired,I ( ) the living room all day.A.painted B.had painted C.have been painting D.have painted我已经在卧室里待了一天了，我很累，那个我很累不就是影响吗，那是不是应该用一般过去时选A啊？可是正确答案选的是C

请认真听课，C.have been painting D.have painted完全一样，完成进行时不过语气强一点而己。得上反复讲辻。