—It’s good to see you again.
—Yes. I keep all the letters you wrote to me over the years.
A. who
B. that
C. when
D. where
网友回答
A. who
(答案→)B. that
C. when
D. where
解析：考查定语从句。句中先行词为all the letters，在从句指作宾语，故用关系词which、that或省略。句意：——再次见到你真是太好了。——是的，我保存了这么多年来你写给我的所有的信。故B正确。