单选题 ______, punish him.
A. Should anyone misbehave in class B. Anyone should misbehave in class
C. Would anyone misbehave in class D. If anyone would misbehave in class

【正确答案】 A
【答案解析】if条件句的虚拟语气倒装结构,将should提到句首,表示“万一”。其他选项均不符合语法结构。