Don’t stop _______ you meet with a word you don’t understand while reading.

Frank insisted that he was not asleep______ I had great difficulty in waking him up.

Parents complain their children are behaving unreasonably _____children consider their parents to be old-fashioned.

The important thing is _______ a man does, not ______ he says.

Is this school ______ you used to study?

_______ surprised me most was _______ such a little girl of seven could play the piano so well.

________you’ve got the chance, you must make full use of it.

----Do you think we can get there on time?
----Yes，_______ the truck doesn’t break down.

----Do you think we can get there on time?
----Yes，_______ the truck doesn’t break down.

You should inspect the wheels regularly, and replace them ______ they cause you trouble.