Past Simple VS Past Continuous

1. Last year we ... in a hotel in Mexico City.

2.She ... at 5 pm yesterday afternoon when I called.

3.They ... to a birthday party last Saturday.

4.He ... when Ann called for help.

5.Mike was waiking to school when he ... Tom.

6.I .... to London yesterday.

7.Mike ... on holiday last week.

8.I ... along a road, when a dog ... out in front of me.

9.It ... when she ... out of the window.

10.I ... a friendly dog while I ... to work today.