第二节语法和词汇知识（共15小题；每题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，并在答题卡上将该项涂黑。
6．— ______?
— Nothing serious, but a bit tired.
A. Anything the matter with you B. Is that all
C. Anything else D. What’s this
7．There is a new problem involved in the popularity of private cars _____________ road
conditions need _______________.
A. when; improving B. which; to be improved C. where; improving D. that; to be improved
