Finally they came into a house, there were some flowers.
A. which
B. when
C. in that
D. where
网友回答
A. which
B. when
C. in that
D. where
解析：此题重在考查非限定性定语从句，先行词为house，在从句中作some flowers的地点状语，因此应选择关系副词where。A选项which是关系代词，先行词为物；B选项when为表示时间的关系副词；C选项中的that不能放在介词之后，更不能用于非限定性定语从句，故选D。