问题补充：
It was at the railway station we first met 16 years ago.
A. where
B. which
C. that
D. when
答案：
A. where
B. which
(答案→)C. that
D. when
解析：考查强调句型。强调句型的基本结构为：it is/was被强调成分that/who其它成分；最大的特点是去掉it is/was…that/who…句子仍然成立。本题强调的是at the railway station句意：前正是在火车站我们第一次见面了。故C正确。
