【题目】The president spoke at the business meeting for nearly an hour without ______ his notes.
A.bringing up
B.referring to
C.looking for
D.trying on

【答案】B
【解析】A. bringing up抚养长大；B. referring to参考，指的是；C. looking for寻找；D. trying on试穿；句意：主席在大会上发言近1个小时，没有用演讲稿。根据句意，故选B。