问题补充：
The Science Museum,we visited during a recent trip to Britain, is one of London’s touristattractions.
A. which
B. what
C. that
D. where
答案：
(答案→)A. which
B. what
C. that
D. where
解析：该题考查非限制性定语从句中关系词的选择。先行词为The Science Museum, 在非限制性定语从句中作visited 的宾语，故用关系代词which。
