In the good care of the nurses, the boy is recovering from his heart operation.
A. quietly
B. actually
C. practically
D. gradually
网友回答
A. quietly
B. actually
C. practically
(答案→)D. gradually
解析：句意，在护士们的精心照顾下，这个男孩在做完心脏手术后，在逐渐的康复。Quietly平静地 actually事实上 practically实际上 gradually逐渐地，根据题意，故选D。