．I really don’t know I kept the secret papers．A. where was itB. it was where that C. where

问题补充：

．I really don’t know I kept the secret papers．

A. where was it

B. it was where that

C. where it was that

D. where was it that

答案：

A. where was it

B. it was where that

(答案→)C. where it was that

D. where was it that

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