问题
选择题
| — Can you describe _____ it happened? — Yes, I was riding on my bike _____ a car knocked me down from behind. |
A. when; as B. how; as C. how; when D. how; while |
答案
答案：C
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| — Can you describe _____ it happened? — Yes, I was riding on my bike _____ a car knocked me down from behind. |
A. when; as B. how; as C. how; when D. how; while |
答案：C
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