请教大全552题，superiority over/to
552. Once the economic and social usefulness of the motor car was demonstrated and with its superiority to the horse being proved, much of the early hostility to it in rural regions disappeared.
(A) and with its superiority to the horse being
(B) and its superiority over the horse had been
(C) and its superiority to the horse
(D) its superiority over the horse
(E) with its superiority to the horse having been
参考答案C。
我的疑问是用superiority over可以吗？我查了一下字典，也有superiority over啊，而且和superiority to意思一样。
另外C中的proved为什么不是was proved？
请各位指教！ |
