It took a long time for the connection between body temperature and illness ___________.
The little girl was crying help and suddenly she ran out tears.
It is believed that part of animals can’t stay alive in water at 1,500 meters below ____ sea level.
—Why isn’t Susan at the dance? —She couldn’t come because she hurt her foot. —!
In the 28th summer Olympic Games , America won the most gold medals ,first .
Tomorrow will be the Youth Day . Will you the picnic in the boat on the west lake ?