Jim, hurry up, ________ we’ll be late for the concert.

He didn’t tell me the truth _____ I met him in the street.

We have happiness, ____________ still we have trouble sometimes. That’s life.

Hurry up, ____________ you will miss the early bus.

—Would you like to go with me?
—I’d like to, _________ you don’t want to go alone.
A. until             B.if             C.after

His hobby is ________ watching TV ________ playing the piano．It’s reading books．

It’s very late at night,  ____ our teacher is still working .

Bill won’t make any progress_____he studies harder than before.

_______________many children like sugar, I think they had better try not to eat it too often.

--- I hear ____ your grandpa ____ your grandma like watching Beijing Opera.
--- Right, just as many old people do in Beijing.