---Where did the accident happen?
---It was at the post office near the Mansion Friendship the peace talk would be held.
A. where
B. which
C. that
D. When
网友回答
(答案→)A. where
B. which
C. that
D. When
解析：考查定语从句和强调句型。句意：--事故是在哪里发生的？--是在即将举办和平演讲的友谊大厦附近的邮局（发生的）。答语的最后省略了that it happened，强调句型中包含了一个定语从句，定语从句不缺成分，指地点用where。做题时，注意答语的省略，这是出题的陷阱。故选A。