It made all the Chinese happy _______ China succeeded in sending up ShenzhouⅦ.
The World Expo 2010 is being held at a time the world is looking for a new kind of balance between nature and cities.
You should have informed me that the lecture was put off. I ________ all the way here through the heavy rain.
,I have to put it away and focus my attention on study this week.
Have you ever wondered ______ there are so many natural disasters across the world in 2010?
---- Was the driving pleasant when you vacationed in Mexico last summer?---- No, it ________ for four days when we arrived, so the roads were very muddy.