Question

He has gained ______ rich work experience there and is showing _______ great progress

1. A.
   a; a
2. B.
   a; /
3. C.
   /; a
4. D.
   /; /

Answer 1

D
解析：
冠词考查题。第一空experience作“经验”讲为不可数名词其千不用冠词，作“经历”讲为可数名词；第二空progress“进步”不可数名词其前不用冠词。句意：他在那获得了丰富的工作经验并且表现出很大的进步。