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Could it be in the classroom_____ we had a talk last night _____you left your keys? 

A. that; where                          B. in which; where    

C. where; that                          D. where; in which  

Could it be in the classroom_____ we had a talk last night _____you left your keys?

A. that; where 　　B. in which; where 　　　 C. where; that 　　 D. where; in which

Could it be in the classroom_____ we had a talk last night _____you left your keys? 

 Could it be in the classroom_____ we had a talk last night _____you left your keys?

A. that; where              B. in which; where        C. where; that         D. where; where