Most parents often their children when they make mistakesA are withB.get angry withC.are a

问题补充：

Most parents often their children when they make mistakes

A are withB.get angry with

C.are afraid ofD.feel happy at

答案：

解析：are with 和……在一起；get angry with对……生气；are afraid of 害怕；feel happy at对……感到高兴。当他们的孩子们犯错误时，大部分父母对他们感到生气。结合语境可知选B。