问题
选择题
| _____ at the party, we saw Ruth standing alone in the corner of the hall. |
A. Arriving B. To arrive C. Arrive D. Arrived |
答案
答案：A
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| _____ at the party, we saw Ruth standing alone in the corner of the hall. |
A. Arriving B. To arrive C. Arrive D. Arrived |
答案：A