The science of computer, _____rapid progress has been made in recent years, is the most important of all science.
_____at in this way, the present situation about birds flue doesn’t seem so disappointing.
The TV programme has ______on the children as ______as the old.
It was_____great shock to the world that two aero-planes crashed into ________ World Trade Center in New York o September 11th, 2001.
He began to __________ because every means _______ tried already.
It’s said that the old lady died ________.