she would go and inform him if she ___ his address.A know B had known C knew D would have known正确答案是B 为什么要选B 不能选C

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/03 07:53:59

she would go and inform him if she ___ his address.A know B had known C knew D would have known
正确答案是B 为什么要选B 不能选C

过去虚拟条件句时态:if +had+动词过去分词,所以选B

过去式的虚拟语气