Question

Some people are bad at recalling names and faces, so it's possible that they have a condition called face blindness, ______ people suddenly have trouble recognizing family members, friends or even themselves．

A．for which

B．which

C．where

D．of which

Answer 1

C

试题分析：考查从句，从句people suddenly have trouble recognizing family members, friends or even themselves句子不缺少成份，所以选where，句子意思“有些人不善于回忆名字和脸，这有可能是连忙正，那里的人们突然在认识家人、朋友和自己有困难”，所以选C
点评：做从句题时，首先看从句是否缺少成份，如果缺少成份就选择关系代词，关系代词不仅起引导作用而且做成份；如果不缺少成份，就选择关系副词，关系副词不做成份，只起引导作用。