When I got off the crowded bus, I found my pocket _____ and the disk in it with the important documents gone.
His camera is more expensive than ___.
There is no such ___ person in the world.
According to a UN report, a third of the world population have no ______ to clean drinking water and health care.
-- Why do you look sad? --There are so many problems _____.
I _____ him not to smoke, but he didn’t think it necessary.