I ___ to go for a walk,but someone called and I couldn't get away_英语解答

I ___ to go for a walk,but someone called and I couldn't get away.
A.was planning
B.planned
C.had planned
D.would plan
答案为什么是C?
那B为什么不对呢?我觉得不用过去完成式也能读的通

人气：262 ℃　时间：2020-03-29 05:02:10

解答

C
这是过去完成时的用法
句中someone called and I couldn't get away
是过去式 ,而“我计划...”又发生在以上过去的过去,故用过去完成时