______ it have been the failure to pick up directions from the ground control that caused the air crash?
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 ________.
_________ water to grow is well-known.