1.You did not hear clearly what the person said; select the correct question to clarify what you heard.
Je suis allé au restaurant de la Tour Eiffel.
Auquel?
Auxquelles?
A laquelle?
Auxquels?
2.You did not hear clearly what the person said: select the correct question to clarify what you heard.
J'aime les croissants du boulanger de la rue des Tours.
Duquel?
Desquelles boulangers?
De laquelle boulanger?
Desquels boulanger?