单选题 No one, except his two best friends, ______ where he is.
  • A) know
  • B) knows
  • C) to know
  • D) knowing


【正确答案】 B
【答案解析】[解析] 如果主语为单数，尽管后面有with，together with，as well as，no less than，like，but，expect等介词，但这样的介词短语相当于修饰主语的定语成分，所以谓语动词仍用单数，故选B。