问题
选择题
It was in the lab __________was in the charge of Professor Smith __________they carried out the experiment.
A．where；that
B．which；where
C．that；where
D．which；that
答案
答案：D
本题考查强调句型及定语从句的连接词。第一空为定语从句，the lab是先行词，其在定语从句中作主语，故用which；第二空是强调句型中的that。
