Question

22.  (2012 天津，39) They were all very tired,but of them took a rest.

   A. none   B. all   C. both   D. either

Answer 1

22.A句意:他们都很累了，但是他们当中没有一个人休息。本题考 查不定代词的辨析。none (三者或三者以上) 都不……；all (三者或 三者以上) 都……;both两者都;either两者中任何一个。根据转折 词but可以判断出后半句为否定含义，故可知答案为A项。