Ihave a dod [ ]name is Tom

I have a dog [whose] name is Tom

填whose是正确的。
但可不是四楼说的后置定语，这是由whose引导的定语从句，定语从句不放先行词后面放哪啊。。

填 whose
whose name is Tom 是 I have a dog 的后置定语，表示前后是从属关系

四楼正解

等等、

What's the meaning of ‘dod’？

填whose