参考答案：D

解析：[听力原文]21-25 My daughter and I had been searching for the origins of my grandfather, Alfred Denny, for several years. We had nothing definite except that he married Minerva Ann Hamilton in Michigan in 1860. When I was a small child, my father had given me the address of his "Aunt Maggie," Mrs. William Rarick of Everson, Washington. She and I exchanged letters for about three years while I was still a youngster. My father died without giving any further information about his relatives. About eighty-five years after my correspondence with Aunt Maggie, I decided to see if I could pick up the trail and find out exactly how she fit into the family puzzle. By then I was in my nineties so I knew the odds were not on my side, but I called the telephone operator for a number of anybody by the name of Rarick in the town of Everson, Washington. She told me they have a Charles Rarick and an L. Rarick. I asked her to ring Charles, but there was no answer so I asked her to try L. Rarick. A woman answered and I said, "Hello, this is Carleton Denny. I am trying to locate relatives of Margaret Rarick." The lady on the telephone took a long breath and hesitantly said, "She was my grandmother." I learned that Aunt Maggie was my grandfather’s half sister. The "L" stood for Luella, who still used her maiden name. I had found my family.21. Where and when was my grandfather married

[分析]： 细节信息。 题干：我的祖父何时何地结婚 用where和when提问细节信息中的地点时、间信息。根据原文“…my grandfather，Alfred Denny…that he married Minerva Ann Hamilton in Michigan in l860．”，译文为：我的祖父阿尔弗雷德1860年在密歇根与密涅瓦·安·汉密尔顿结婚。