The World Expo Shanghai 2010 is more like aplatform for cultural exchange, ________ people into closer contact with therest of the world.

Hold on to your dreams, _______ they will come true one day.

“This is a window, ________ the sun comes in.” said the lady to her baby

living in America for over 20 years, Brother Sway saidto a reporter the other day, “I ________ done bigger things, had biggerachievements had I stayed in China.” .

He ____ at home and ____ his homework last weekend.