If the researchers are successful, they an important step in reproducing the way that humans use cognition(认识力)to interact(交流;互动)in their world.
. With a _________ expression on her face, she is _______ about what to do next.
—I'm sorry. I _________ at you the other day. —Forget it. I was a bit out of control myself.
__________ attracts movie goers in the film Avatar is its vivid three-dimension effect (三维效果) , grand war scenes and touching love story.
. Her parents died in a car accident when she was a baby and she was _______ by her aunt in Canada.
. It is reported that the ____________ winds last night buried the whole village in sand.