What does "чья" mean?

образец:Это мой мама.
Чья это мама.

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Originally Posted by bellabob

образец:Это мой мама.
Чья это мама.

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Это моя мама. => She is my mom.
Чья это мама? => Whose mom is she?

Чья, чей, чьё, чьи - whose

Спасибо.

While I'm here, what does "моё" mean?

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Originally Posted by Lampada

Чья, чей, чьё, чьи - whose

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But how do you know which one to use?

Quote:

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Originally Posted by bellabob

Спасибо.

While I'm here, what does "моё" mean?

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моё => my/mine

Quote:

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Originally Posted by bellabob

But how do you know which one to use?

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Based on the gender and the number.

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Originally Posted by Crocodile

Based on the gender and the number.

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My book didn't really explain that at all.

Oh, wait, I found it.

Thanks.