i would have told him the answer,but i______so busy then.a.am b.w_英语解答

i would have told him the answer,but i______so busy then.a.am b.were c.was d.would be 选什么...
i would have told him the answer,but i______so busy then.a.am b.were c.was d.would be 选什么?为什么?

人气：464 ℃　时间：2019-08-19 22:02:09

解答

我该告诉他答案,但当时我太忙了.选C ,一般过去时.
选A为一般现在时不对,B不对,D过去将来时也不对.