Here are the sentences in the past simple:

1. I went swimming yesterday.
2. Mrs. Nhung washed the dishes.
3. My mother went shopping with friends in the park.
4. Lan cooked chicken noodles for dinner.
5. Nam and I studied hard last weekend.
6. My father played table tennis yesterday.
7. Last night, Phong listened to music for two hours.
8. They had a nice weekend.
9. She went to the supermarket yesterday.
10. We didn't go to school last week.