The old lady’s hand shook frequently.She explained to her doctor ______ this shaking had begun half a year before, and, ______ only because of this, she had been forced to give up her job.

You may have no idea _____ you will be doing ten years from now.

   in today’s newspaper is that the American young man has won eight gold medals in the Beijing Olympic Games.

        is known to  us all is that America is a developed country         _________the First World.

       sometimes keeps her awake at night is       Tom is getting more and more quiet at home.