It turned out that one of the children I thought a girl was a boy.
A. specially
B. usually
C. especially
D. actually
网友回答
A. specially
B. usually
C. especially
(答案→)D. actually
解析：specially特别地；专门地；特意地；格外地usually 通常，经常，平常，especially 尤其地，特别地，格外地actually实际上；事实上；确实。句意：结果证明我认为是女孩的一个小孩实际上是男孩。故选D