It was in this house he heard some strange sounds.
A. that
B. where
C. which
D. who
网友回答
(答案→)A. that
B. where
C. which
D. who
解析：考查强调句： it is /was+被强调部分+that/who+…，判断方法是去掉it is /was that/who句子不缺成分，即为强调句型。这句话如果改成简单句是he heard some strange sounds in this house.是完整额句子，所以是强调句，句意：就是在这个房子他听见一些奇怪的声音。选A。