问题
选择题
| — It's a long time ____ I last saw you. — Yes, and it will be another month ____ we can meet again. |
A. before; since B. when; before C. since; until D. since; before |
答案
答案：D
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| — It's a long time ____ I last saw you. — Yes, and it will be another month ____ we can meet again. |
A. before; since B. when; before C. since; until D. since; before |
答案：D