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1) Are these tag questions, correct, please?

Those aren't the books of our library, are they?

These are my mother's coats, aren't they?

2) Are those Susan's pies?

- Yes, those are her pies .

or

- Yes, they are her pies. (are both forms of answer, correct ?)

Is that your mirror?

- Yes, that's my mirror.

or

- Yes, it's my mirror. (are both forms of answer, correct ?)

Thanks for helping me,

Adam
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1) Are these tag questions, correct, please?-- Yes

Those aren't the books from our library, are they?

These are my mother's coats, aren't they?

2) Are those Susan's pies?

- Yes, those are her pies .

or

- Yes, they are her pies. (are both forms of answer, correct ?-- Yes)

Is that your mirror?

- Yes, that's my mirror. OR - Yes, this's my mirror

or

- Yes, it's my mirror. (are both forms of answer, correct ?-- Yes, but 'it's' is not so common.)
Comments  
Thanks for your reply, Mister Micawber!

Best wishes,

Adam