Nancy was badly injured in the accident yesterday and she was sent to hospital.–Oh,really?I ___a、hadn’t know b、don’t know c、didn’t know d、haven’t known

问题描述:

Nancy was badly injured in the accident yesterday and she was sent to hospital.–Oh,really?I ___
a、hadn’t know b、don’t know c、didn’t know d、haven’t known

C 我过去不知道,起始时间点在现在,即与现在相比

选C .指过去不知道,现在知道了.