Question

12.You haven't seen Mrs Gupta,haven't you?(correct the error) ​

Answer 1

Answer:

The error is that in place of haven't there should be have bcoz in first part of sentence there is negative sense and it is asking a question so the correct sentence is

You haven't seen Mrs Gupta,Have you?

Answer 2

Answer:

You haven't seen Mrs Gupta, have you?

Explanation

In such sentences when the beginning has a negative word at the end the positive form of the word should be present.

Ex: You have completed your homework, haven't you?

Hope this tip will help in the future