问题
选择题
Two lawyers were told not to leave the building but no reason for this _____ was given.
A．convenience
B．instruction
C．explanation
D．construction
答案
答案：B
题目分析:考查名词辨析。A 方便；B命令，指示；C解释；D建设。根据前面Two lawyers were told not to leave the building可知这是表示命令的被动句，所以B选项正确。句意：两个律师被告诉不让离开这栋建筑，但是没有给出理由来解释这项命令。