The old house, in front of there is an apple tree, is I used to live.
A. that, the place
B. it, the place
C. which, where
D. what, where
网友回答
A. that, the place
B. it, the place
(答案→)C. which, where
D. what, where
解析：第一空应填 which，in front of which there is an apple tree 为修饰 the old house 的非限制性定语从句；第二空填 where，用以引导表语从句。