第二节：语法和词汇知识（共15小题;每小题1分,满分15分）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. Shanghai is trying to control ________ number of cars on the road to ensure clean air for
________ 2010 World Expo.
A. a ; / B. a ; the C. the ; / D. the ; the
7. ---You must have had a good time at the party last night, didn’t you ?
---________. Actually, it was a bit boring.
A. Oh, great B. Not really C. I suppose so. D. That’s OK
