To our great relief, Jack’s illness proved not to be as serious as we .A. had fearedB. ha

网友回答

(答案→)A. had feared
B. has feared
C. would fear
D. feared
解析：句意：使我们宽慰的是，杰克的病证明没有我们害怕的严重。从动作的先后关系可知是：我们先是担心然后证明并不严重，前面是proved，所以fear是过去的过去的动作，用过去完成时，选A。