This question tests the ability to use question tags correctly, therefore changing the sentence into a tag question would be:
- That's your new dress, isn't it?
What is a question tag?
This is known to be a small sentence attached or tagged to the end of a sentence.
Hence, we can see that turning a statement into a question, you should put a comma and then add the correct question tag leaving the rest of the sentence the same.
Read more about question tags here:
#SPJ1
