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题目内容
（华北水利水电大学混凝土结构设计原理）
He ______ his ideas had been confirmed. ( )(本题2.0分)
A、 was gratified to hearing
B、 was gratified to hear
C、 was gratifying to hearing
D、 was
A、 was gratified to hearing
B、 was gratified to hear
C、 was gratifying to hearing
D、 was
参考答案