-- If you break the rules again you are sure to be punished.-? I don’t care.A. What if

问题补充：

-- If you break the rules again, you are sure to be punished.

---? I don’t care.

A. What if

B. How come

C. What for

D. So what

答案：

A. What if

B. How come

C. What for

(答案→)D. So what

解析：考查交际用语。A要是…又如何？B为什么？C为了…?D那又怎么样？结合上下文可知D正确。句意：—如果你再违背规则，你一定会被惩罚。—那又怎么样？我不在乎。