Bài tập thì quá khứ tiếp diễn 3

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1. I ... Math at that time last week.

2. ... with your friends at 2PM yesterday?

3. My father was cleaning up the house ... my mother was cooking dinner.

4. Tom was seeing a doctor ...

5. The leader ... a very important meeting at this time 2 days ago.

6. ... I met him, he was going to his grandparents' house.