Talking about the past

Write these sentences in the past simple tense

1) I am not at school now, I am at home.
Yesterday morning.......................

2) We aren't at the concert, we are at the cinema.
Last night...............................

3) My parents aren't in the city; they are on holiday in the mountains.
Last week.............................................................

4) David isn't good at maths, he is good at chemistry.
When David was at school, he..........................

5) The party is great!
Last Saturday's party.................................

6) Where are you now? I am at my Grandma's.
Where................you yesterday afternoon?