【题目】With bans on fireworks, at one point, almost 300 cities across my country ____ rules banning the use of fireworks.
A. have B. have had C. are having D. had
在线课程【答案】D
【解析】D考查动词。句意：在禁止燃放烟花爆竹的情况下，我国近300个城市禁止燃放烟花爆竹。由时间状语at one point可知是发生在过去的动作，一般过去式，故选D。