- 试题详情及答案解析
- __________car traffic in city centers and make the air cleaner, some countries made rules that drivers should pay extra money if they drive in the city centers.
| A．Reduce | B．Reducing |
| C．To reduce | D．Reduced |
- 答案：C
- 试题分析：句中不定式作目的状语。句意为“为了减少市中心的车辆和使空气清洁，有些国家制定规则，如果司机开车到市中心，他们应该多付钱”。
考点：考查不定式的用法。