14. From the school nameon the package we guessed that it might belong to a student of ou

问题补充：

14. From the school nameon the package, we guessed that it might belong to a student of our school.

A. to mark

B. marking

C. marked

D. having been marked

答案：

A. to mark

B. marking

(答案→)C. marked

D. having been marked

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