A.Bonjour, monsieur.
B.Bonjour, tout le monde.
C.Bonjour à tous.
D.Bonjour, madame.
There is no point______ the piano, unless you practise every day.
A.to learn to play
B.by learning to play
C.in learning to play
D.having learned to play
A、la culture russe
B、salle de lecture
C、sur le bureau
D、nuit sans lune