题目内容：
This is the second time that Mr. Smith_the Great Wall, the first time being ten years ago. A. visited
B. would have visited
C. has visited D. is visiting
参考答案：
选择题：This is the second time that Mr. Smith_the Great W
- 题目分类：西安交通大学-土木工程-英语
- 题目类型：选择题
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_the Great Wall, the first time being ten years ago. A. visited
B. would have visited
C. has visited D. is visiting