Question

this isn't a beautiful dress( add question tag) ​

Answer 1

this isn't a beautiful dress,is it?

Answer 2

This isn't a beautiful dress, is it?

1. The sentence given to us is "this isn't a beautiful dress"

2. It is an assertive sentence, also called a declarative sentence.

3. We have been asked to add a question tag at the end of it

4. Thus, we have to make the given declarative sentence into an interrogative sentence.

5. The main difference between an interrogative and a declarative sentence is that a declarative sentence usually declares something or states a fact whereas an interrogative sentence asks a question.