12.It was in this very lab was in the charge of Professor Smith t_英语解答

12.It was in this very lab was in the charge of Professor Smith they did the experiment.A.where;that B.which;that C.which;where D.that;where

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解答

答案：B.本题考查定语从句与强调句的混用.分析题干,可将原句分解为：1、It was in this very lab that they did the experiment.（此句为强调句,强调地点状语in this very lab；因为强调句中,去掉it was/is...that.....