—I love the Internet. I’ve come to know many friends on the Net.—___. Few of them would become your real friends.
It is necessary that a college student ______at least a foreign language.
Sarah hopes to become a friend of ______shares her interests.
______leaves the room last ought to turn off the lights.
. It is generally considered unwise to give a child _____he or she wants.
_____ the 2000 Olympic Games will be held in Beijing is not known yet.