I want to know who--------for the spoiled child.A.is to be b

B。to blame 一般来说,表示“某人该为某事负责任,某事该归咎于某人”用sb is to blame for sth,而不用sb is blamed for sth。这是语言习惯。who to blame for……是带有疑问词的不定式,类似what to do:I don't know what to do next。