He on this paper for ten minutes but he only about sixty words.
A. will have worked, has written
B. worked, has written
C. has been working, has written
D. will be working, works
网友回答
A. will have worked, has written
B. worked, has written
(答案→)C. has been working, has written
D. will be working, works
解析：此题考查现在完成进行时态的区别。前者强调动作的延缓性，后者强调动作的完成性。本题前一句表示在这十分钟内写论文的动作一直在进行，后一句表示动作的完成性，”仅仅只写了60个字”。故选C。