问题
选择题
| The Browns usually drive to the park on Sundays. But today they go to the park _____. |
A. on feet B. on foot C. by foot D. on the foot |
答案
答案：B
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| The Browns usually drive to the park on Sundays. But today they go to the park _____. |
A. on feet B. on foot C. by foot D. on the foot |
答案：B
