Choose the correct option to fill in the gaps in the sentences below

1. Where [were|was] you [tomorrow|yesterday evening]?
2. My friend and I [was|were] at the cinema [next Sunday|last Sunday].
3. [Was|Were] Mike at school on [Monday|last Monday]?
4. Your dress [is|does] nice. [Was|Were] it expensive?
5. How many students [was|were] there at the conference [next time|last time]?