David got Type A influenza last week. After resting and taking medicine for a week, he should be back_____ in no time.
Aon hand
Bon his feet正確答案
Cunder the weather
Dwith conscience
答案與詳解
back on one's feet 字面「重新站起來」,引申為「恢復健康、重振旗鼓」,完全符合休息吃藥後的康復語境。
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