I will never forget my stay there I found my lost wallet.A. whichB. thatC. whereD. when

问题补充：

I will never forget my stay there I found my lost wallet.

A. which

B. that

C. where

D. when

答案：

A. which

B. that

C. where

(答案→)D. when

解析：考查定语从句：句意：我永远不会忘记在那里逗留期间，当时我发现丢失的钱包。先行词是my stay表示“逗留期间”，定语从句不缺主语，宾语，缺的是时间状语，用when引导定语从句，选D。