Haditnotbeenforthehaze（霾）weatherphenomenon,there      ...

问题详情：

 Had it not been for the haze（霾）weather phenomenon, there         fewer car accidents in Beijing then．

       A．would have been                B．were

       C．may be                        D．would be

【回答】

A

知识点：虚拟语气与情态动词

题型：选择题