We must do everything what we can _______ water and paper.
The students were so _______when they heard the _______news.
I don't like bread. I won't eat it ______ I am very hungry.
The manager asked the man ______. The man said yes.
─I want to know if your daughter will go to the teenager party. ─If your daughter does, so________.
There are many people downstairs. What do you think _____?