问题描述：
- I was secretly smoking when my father walked into my room.To my surprise,he wasn't angry.
- I was secretly smoking when my father walked into my room.To my surprise,he wasn't
angry.
-- Well,tell us -- what when your father discovered you?
A.did happen B.has happened C.is happening D.was happened
为什么选A,D不行?
- I was secretly smoking when my father walked into my room.To my surprise,he wasn't
angry.
-- Well,tell us -- what when your father discovered you?
A.did happen B.has happened C.is happening D.was happened
为什么选A,D不行?
问题解答：
我来补答展开全文阅读