有一个同学总是问我 Are you a pig? 我该怎么办?

Yes.I am a pig as well as you!But you are as foolish as a pig !!!You are the best foolish in this world,I 服了 you....

No, but one pig is asking me a question.
或： Yes...(停顿） just like you!

You can say"shut up".

you can say"don't call me pig , you are a pig too!"翻译：你可以说“不要叫我猪，你也是个猪！”

那人无聊,这点英语也来秀,就说No,But you are a pig.

No,we are different.
或We are the same.