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誰の本ですか

Whose book is it?

→ 誰
phrase Rare #41,180
Whose book is it? A polite way to ask who owns a book. 誰の means “whose,” and 本 means “book.” In casual speech, は is often omitted, as in これ誰の本ですか？
JA: これは誰の本ですか？
EN: Whose book is this?

これは誰の本ですか。

Whose book is this?

これ誰の本ですか？

Whose book is this?

あれらは誰の本ですか。

Whose books are those?

あれは誰の本ですか。

Whose book is that?