问题
选择题
| Though we don't know what is discussed, yet we can feel the topic _______. |
| A. had changed B. will change C. was changed D. has been changed |
答案
答案：D
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| Though we don't know what is discussed, yet we can feel the topic _______. |
| A. had changed B. will change C. was changed D. has been changed |
答案：D