The poor little girl was young to know when her parents suddenly died in an accident.
A. so; what to do
B. too; what to do
C. so; how to do
D. too; how to do
网友回答
A. so; what to do
(答案→)B. too; what to do
C. so; how to do
D. too; how to do
解析:too+ adj to do,表示太…,而不能做某事,故选B