问题
选择题
| _____ at college for 3 years, she knows the place very well. |
A. To have studied B. Having studied C. Studying D. Studied |
答案
答案：B
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| _____ at college for 3 years, she knows the place very well. |
A. To have studied B. Having studied C. Studying D. Studied |
答案：B