I'm not sure whether this is the room she left her dictionary. A. where B. that C. whichD

问题补充：

Im not sure whether this is the room she left her dictionary.

A. where

B. that

C. which

D. in that

答案：

(答案→)A. where

B. that

C. which

D. in that

解析：先行词room在定语从句中作地点状语，所以用where引导定语从句。

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