A large part of a person’s memory is in terms of words and ____ of words.（2001，30）
The high living standards of the US cause its present population to ______25 percent of the world’s oil.
Countries like Russia, Venezuela and Iran are well supplied with rising oil______, a change reflected in newly aggressive foreign policies. （2009，33）
It would be extremely unwise for a foreign visitor to work without a permit, since anyone doing so is ______to immediate deportation．(2002, 44)