二、单项选择(共15小题;每小题1分,计15分)
( )21. Tom likes playing_______ volleyball, but Lily likes playing_______ piano.
A. a, a B. the, the C. the, / D. /, the
( )22.---Our library is bright and modern. ---________? Will you show us around?
--- __________. Let’s go.
A. Really; Oh B. Pardon; Of course
C. Pardon; Sure D. Really; Sure