Вставьте was/were

1) I ..... playing the guitar .
2)We .... playing basketball .
3)She ... playing the piano.
4)They ...playing football .
5)She .... going to school.
6)You ....doing homework.
7)Liza and Laura .... going to the cinema.
8 )What ....you doing ?
9) What .....she doing ?
10)Olivia ..... going to the swimming pool.