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过去的过去
1.Both actions happened in the past.
2.One action happened before the
other in the past.
(在过去某一时间或动作之前已经
发生或完成了的动作。)
Definition
Structure
助动词(had)+动词的过去分词（Vpp）即 had done
Key words
1. when、before、after 引导的时间状语从句
2. 宾语从句
3. 通过上下文判断
4. by + 过去的时间
by the time = when
by the end of last year
by nine o’clock last night
First of all , she overslept.
Before…, her brother…
ran to school
ran back to school
When …, she realized …
got back to…, the bell
What a bad morning!
got outside, the bus..
By the time …, she realized…
school
home
Mary had a really … morning.
walked into, the teacher…