Tom, clean up the broken glass _________ someone walks on it.
Nothing is more important than health, so it is unwise to build up our business ________ our health.
In order to know those who really need help as well as how to help them, ________ to help others.
Don’t worry about the situation we’re facing now. I think the problem can be ________ without too much difficulty if we don’t lose heart.
________ was the damage to the machine caused by his carelessness that it would cost thousands of dollars to repair.
--Could you tell me where you’re working now, Tony? --In the new development zone. But I ________ in a computer company for five years.