that do you spell your name

改成：
How do you spell your name? 你的名字怎么拼？

如果只能改一个字，可改成：How do you spell your name?
如果可以整句作修改，说成：How do your spell your name? 或 How to spell your name? 或 Could you spell your name? 更为恰当。

改成：
How to spell your name?