1. Lan met her at the party 3 years ago.

2. Last summer vacation, Mon didn't buy me a new buy.

3. When he left for work last week

4. What did you do yesterday

5. We began to learn English 3 years ago

6. She was an engineer last week

7. Lan wasn't at home yesterday

8. He wore the shirt last week

9. They were here yesterday

10. You went to shool yesterday

11. Tam was at home last night- Yes he was

Lan loves taking care of the animals.