问题
Li Wen used to be a “problem child”. Now he can behave well.
A:was a had young man
B:used to cause much trouble when he was a boy
C:got into trouble with the police
D:used to be afraid of the dark.;
B:used to cause much trouble when he was a boy
C:got into trouble with the police
D:used to be afraid of the dark.;
正确答案是：
