As is known to us all, the opening ceremony of the Shanghai World Expo, ____ theme is “Better City, Better Life”, will begin on May 1st, 2010.
Some so-called climate travelers ________ in one place for a few months and then move on to some other places as the weather changes.
The game was so exciting to play that the boy kept his eyes and attention ________ on it, ruining both a lot.
The sides of the Iran nuclear negotiation reached a key point, the result of ________ would have a great influence on the world peace.
The astronauts have to lie ________ the floor of the spaceship to fight against the great pressure during the flight.
–________ your new desk-mate?–Well, she is nice except that she talks a little too much.