Simple Past or Past Continuous

1.She didn’t know ✔ that I was watching ✔ her while she was singing.
2.James fell ✔ off the stairs yesterday while I was cooking ✔ dinner.
3.When the train arrived ✔, we were chatting ✔ with my friends.
4.When you first came ✔ to this country, I was working ✔ as a cashier.
5.The first time I saw you, you were playing ✔ the guitar and Bella was singing ✔ our favorite song by the beach.
6. I called ✔ you as soon as I heard ✔ the news.
7. I don’t know what it said but when she received ✔ his e-mail, she cried ✔ a lot.
8. While it was raining ✔ yesterday, we were swimming ✔ in the sea.
9. We called ✔ the insurance company when our car broke down ✔ in the middle of the highway.
10. My dad came ✔ home just when the game ended ✔.