题目内容
It was in the lab______ was taken charge of by Professor Zhang ____ they did the experiment.
A.where, that B.which, where C.that, where D.which, that
D
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。
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