The Spring Festival this year falls February 19th, 2015.A. on B. in C. at
— Can you play chess? — No, but I can play ________ piano very well.
—Would you like to join us in the game ? — , but I have to help my mum.
— Would you like something to drink? —I’m not thirsty.
—Have you mended your shoes, Bob? —Yes, I _________ them twenty minutes ago .
—Listen! Is Mary singing in the next room? —No. It _______ be Mary.She has gone to Shanghai for an important meeting.