Finally they came into a house there were some flowers.A. whichB. whenC. in thatD. where

问题补充：

Finally they came into a house, there were some flowers.

A. which

B. when

C. in that

D. where

答案：

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。