Teachers' advice ofstress over the school days must be grant．ed by the headmaster．A. stude

问题补充：

Teachers advice ofstress over the school days must be grant．ed by the headmaster．

A. students to reduce

B. students reducing

C. students reduced

D. students being reduced

答案：

A. students to reduce

(答案→)B. students reducing

C. students reduced

D. students being reduced

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