Alice,why didn't you come yesterday?--I ( ),but I have an unexpected visiter.A.had B.would C.was going to D.did

Alice,why didn't you come yesterday?--I ( ),but I have an unexpected visiter.A.had B.would C.was going to D.did
Alice,why didn't you come yesterday?--I ( ),but I have an unexpected visiter.
A.had B.would C.was going to D.did

Alice,why didn't you come yesterday?--I ( ),but I have an unexpected visiter.A.had B.would C.was going to D.did
C 对,1和4首先排除 表示肯定 是错的 因为but 后面的解释：因为我有了一个预料之外的拜访者 而2是指受邀者本身愿意去 与题意有出入 3翻译作我当时正要去