--- Come on. I have a gift for you. --- How nice of you. I never ____ you _______ me a gift.
It was Tom and his friends that________for the serious accidents.
He was reading a very interesting story, completely_______himself in the story.
Whoever invented _______wheel is believed to have made ______most useful invention in _______history.
The importance of saving gas_______be stressed too much. Automobiles use up some 70 billion gallons of gas a year.
Every day the boy, together with his classmates,_______to go to the sports ground and______football, _________themselves.