介绍:
Unit3
1. I saw her a minute ago.
2. He was a bus driver years ago.
3. Dick suddenly fell ill yersterday.
4. What did you say to her just now?
5. We were poor but happy in thoese days.
6. I often played with Sam in those days.
7. Love was totally absent from my childhood.
8. I usually took a walk along the river in the morning when I lived there.
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