Question

It was in the lab __________was in the charge of Professor Smith __________they

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

Answer 1

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。