问题
选择题
| — Why do you turn back? — Oh, the bridge ahead _____. |
A. is being repaired B. is repairing C. is repaired D. is being repairing |
答案
答案：A
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| — Why do you turn back? — Oh, the bridge ahead _____. |
A. is being repaired B. is repairing C. is repaired D. is being repairing |
答案：A