It's ______ interesting program and it tells us how to play ______ piano.A. a; the B. an; the C. the; a
I saw Sam __________ football when I passed the playground.
There is so much rubbish.Could you ____________?
He used to _______ up late, now he is used to __________ up early.
We’ll go to the park if it ___________ tomorrow.
We like water _______ nothing in it.