I shall never forget the days ____ the Olympic Games were held in Beijing, ____ has a great effect on my life.
He ran towards the seaside and ______ into the water.
_____._ much advice I gave him, he did exactly what he wanted to do.
If you are _______ about Australian cities, just read the book written by Dr. Johnson.
John was so sleepy that he could hardly keep his eyes ______.
—The light in the office is still on. —Oh, I forgot__________