The one that you never forget is your math teacher?为什么是陈述句,还用问号呢?

The one that you never forget is your math teacher?为什么是陈述句,还用问号呢?
The one that you never forget is your math teacher?为什么是陈述句,还用问号呢?

The one that you never forget is your math teacher?为什么是陈述句,还用问号呢?
从语序上看,这的确是个陈述句.但是用问号表示是问句,书面语不常见,小说里的对话里有,属于不规范的英文.口语中用的比较多,例如,看见别人摔了一跤,跑过去问“You are OK?”,用升调表示问句.