Требуются пояснения насчёт. Turn the personal pronouns below into possessive adjectives or pronouns and use them to complete the sentences.
Write one word in each gap.
I, we, they

"We can't use these toothbrushes." — "Why not? They're."
I want to buy a skateboard. It will befirst skateboard!
"Is this book your sister's or your parents'?" — "It's."

"we can't use these toothbrushes." — "Why not? They're ours."
I want to buy a skateboard. It will be my first skateboard!
"Is this book your sister's or your parents'?" — "It's mine."
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"We can't use these toothbrushes." — "Why not? They're ours." I want to buy a skateboard. It will be my first skateboard! "Is this book your sister's or your parents'?" — "It's mine."