It is only when you nearly lose someone _____ fully conscious of how much you value him.

Male nurses are difficult to hire as many men reject this______ out of the long-existing discrimination．

I can’t see anything in the room. Please help me the lights.

ing to my grandparents, it is a goodidea to eat chicken soup when you have a cold. __, scientists agree with them.

If the car you rent is not satisfactory, you can always ________ it for another.