问题
选择题
The Science Museum, ______we visited during a recent trip to Britain, is one of London’s attractions.
A．which
B．what
C．that
D．where
答案
A
which 引导非限定性定语从句，指代先行词the Science Museum,同时又在从句中作visited 的宾语。Where为关系副词，不能作宾语，that不能引导非限制性定语从句，what不能引导定语从句。