unately we had a compass, without________we would have got lost

Everybody is playing outside. Can I join them,Mom? — _______ Not until you have finishedpracticing the piano.

Nothing is so easy as ________ parents to raise theirexpectations of their children too high.

One of the most famous places of interest in China _________ the Palace Museum.

Oh, I failed again—Don’t lose heartOne more effort, ________ you will succeed