--Is your hat on the sofa?
Eating ____ vegetables and _____ meat is good for the old.
It’s so noisy here that I can’t hear_______. Could you please say it again?
This singer sang many songs, ________ some of Liu Huan’s.
---Tony, can you play_________ piano?---No, But I can play______ chess.
Sally always likes to sit ____________ Mr. zhang, because she enjoys talking ______ him.