单选题This is the biggest laboratory _____ we have ever built in our school.AwhichBwhatCwhereD\
单选题
This is the biggest laboratory _____ we have ever built in our school.
A
which
B
what
C
where
D
\
参考解析
解析：
当先行词前有最高级修饰时，用关系代词that，不能用which。而且如果这个关系代词在定语从句中作宾语，可以省略，所以选D。
当先行词前有最高级修饰时，用关系代词that，不能用which。而且如果这个关系代词在定语从句中作宾语，可以省略，所以选D。
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