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

【解析】

试题分析：考查定语从句。有些人在回忆名字和面孔是想不起来，所以他们可能有一个叫做脸盲的状况，在这种状况下人们突然在辨认家庭成员、朋友甚至他们自己时有困难。a condition是先行词，相当于一个地点“在这种情况下”，定语从句缺引导词，根据句意故选C。

考点：考查定语从句。