问题
选择题
| — Have you returned the library book ? — Yes, I've returned it. |
A. already; already B. yet; yet C. already; yet D. yet; already |
答案
答案：D
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| — Have you returned the library book ? — Yes, I've returned it. |
A. already; already B. yet; yet C. already; yet D. yet; already |
答案：D