Even though she had been very busy that day ,she _ us.

问题描述:

Even though she had been very busy that day ,she _ us.
A would have helped B.would help C.had helped D.helped

虚拟语气吧,that day 本来应该用过去时,这里用的had been
所以答案还是选A吧!
与过去事实相反的虚拟语气,主语应该是 sb.would have done
希望对你有用!