摘要：39] How pleased the detective was what his customer told him! [译文] 侦探听到他的客户所讲的事很是高兴! A. hearing B. heard C. to hearing D. to hear [答案及简析] D. "be pleased to do sth."为固定结构,不定式表原因.此感叹句的陈述句形式为: The detective was pleased to hear what his customer told him.

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