Английский, помогите пожалуйста!!

Question

Английский, помогите пожалуйста!!

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Answer 1

2-Whose cat is it?—It's hers.
3-Whose rabbits are these?—They're ours.
4-Whose bird is it?—It's hers.
5-Whose mice(исправь) are these?—They're his.