【题目】 Their youngest girl is at the stage ______ she can say a single word but not a full sentence
A. when B. which
C. that D. where
在线课程【答案】D
【解析】
试题分析：句意：他们最小的女儿正在舞台上，她只能说单个的词语不会说整句。A. when时间状语 B. which 引导定语从句，做主语或宾语； C. that引导定语从句，做主语或宾语；D. where 地点状语。stage是先行词，在定语从句中做地点状语，故选D。