It's a birthday card.的问句是什么?

网友回答

What is this in English?
======以下答案可供参考======
供参考答案1:
what is it?是针对划线部分为a birthday card的特殊疑问句
供参考答案2:
特殊疑问句 What is it？
一般疑问句 Is it a birthday card？