It is the prevention of disease_____ its successful treatment that has led to the rapid increase of the world’s population.
, the mountain looks like an elephant.
The Red Cross help for refugees, over two million dollars have been raised.
That the brain, once oxygen, dies has been proved.
an important role in a new movie, Andy has a chance to become famous. (2011 .四川)
Passengers are permitted only one piece of hand luggage onto the plane. (2011 .天津)