Question

is that what?和what is that?

Answer 1

都正确,也都可以说.不过,Is that what?用的时候比较特殊：在没有听清对方问提问时,要求对方重复所提问题：

- Is that a pagoda?

- Is that what?

- Pagoda.

- Oh,no.That's a shed.

What is that?是一个教科书里教的问句,问“那是什么?”