从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
6. We Chinese made ________ 2008 Beijing Olympic Games ________ great success, winning high
praise from all over the world.
A. a; a B. the; the C. the; a D. a; the
7. With oil price ________ all the time, people have to pay more for traveling.
A. going up B. gone up C. went up D. goes up
