1. Once the economic and socialusefulness of the motor car was demonstrated and with its superiority to thehorse being proved, much of the early hostility to it in rural regionsdisappeared. (A) and with itssuperiority to the horse being (B) and itssuperiority over the horse had been (C) and itssuperiority to the horse (D) itssuperiority over the horse(C) (E) with itssuperiority to the horse having been 这道题白勇上面解释的答案是B,原因说的是and连接的对象要堆成,但是C中我觉得was是省略掉的啊,求助啊求助,我觉得真的是C