Of all the clues they provided is of any help for solving the case of robbery.A. nothing

问题补充：

Of all the clues they provided, is of any help for solving the case of robbery.

A. nothing

B. neither

C. none

D. no one

答案：

A. nothing

B. neither

(答案→)C. none

D. no one

解析：考查代词：A. nothing（三者以上）没有，B. neither两者都不，C. none（三者以上）都不，D. no one没有人，句意：在他们提供的线索中，没有一个是对抢劫案的解决有帮助的。用none=none of all the clues they provided，选C。