The two runners are neck and neck; of them could win the race.A. eitherB. neitherC. allD.

问题补充：

The two runners are neck and neck; of them could win the race.

A. either

B. neither

C. all

D. none

答案：

(答案→)A. either

B. neither

C. all

D. none

解析：考查代词：A. Either（两者间）任何一个，B. Neither（两者）都不C. All（三者以上）都，D. none（三者以上）都不，句意：两个选手肩并肩，两个中任何一个都有可能赢得比赛。选A。