Scientists study ____ human brains work to make computers.
The mayor of Beijing says that all construction work for the Beijing Olympics ____ by 2006.
— George and Lucy got married last week. Did you go to their wedding?— No. I ____. Did they have a big wedding?
He is known _____ his being on time, so we don’t know the reason ____ his being late this time.
How beautifully she sang! I have never heard _______ song.
Mr. Green, who is a member of Labor Party, has _____ Mr Brown as President.