Fill in the correct form of the verb to be:
1. The book ___ bought yesterday.
2. Tim ___ invited to the party tomorrow.
3. This SMS ___ sent two days ago.
4. Food ___ bought every day.
5. The lecture ___ attended yesterday.
6. Tom ___ sent to the camp in a week.
7. This invention ___ made last year.
8. The bedroom ___ tidied every day.
9. The statue ___ opened in two weeks.
10. This phone ___ bought last year.
11. The computer ___ used every day.
12. Nick ___ asked to bring his camera yesterday.
13. These books ___ read in a two months.
14. The cat ___ brought yesterday.