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to their work, all the teachers of Senior III work day and night to help the stu

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to their work, all the teachers of Senior III work day and night to help the stu

_____ to their work, all the teachers of Senior III work day and night to help the students to pass the Entrance Examinations for colleges.

A. Devoting                            B. Having devoted

C. Devoted                             D. Being devoted

试题答案

C