"Il y a un livre dans mon bureau."
**Or, if you mean a student's desk at school, Il y a un livre dans mon pupitre.**
A desk is "un bureau" (masc.)
un bureau
Either form of the prepositional phrase is correct, depending on the sentence; for example:The book is in your desk. I took the book from your desk and put it in the bottom drawer.
"nettoie ton bureau"
ils ont / elles ont un bureau
Teacher's Desk - el escritorio Student's Desk - el pupitre :D
un bureau is the French name for a desk.
The Articles of Speech 'a' and 'the' have two separate meanings in English grammar. Using 'a' means, generally, any... for example: I saw a book on the desk. - This could be any book. But the desk is one particular desk. Using 'the' typically means one in particular. I saw the book on the desk. - Here, the book is a specific book. Consider these changes: I saw a book on the desk, but I can't say what it is about or even the title. I saw the book on the desk. It is the history class textbook, called "History and Today" by E.B. Smith.
"Le bureau" is commonly used. If you want to be really specific, you can say, "le bureau du prof (the desk of the teacher)," but that's probably overkill.
el libro esta en el escritorio
mon livre francais
a desk is "un bureau" in French. It is a masculine noun.