1.   They’re working on the project, .......................... ?

      2.   It wasn’t my fault, .......................... ?

      3.   Bill got what he wanted, .......................... ?

      4.   It won’t be hard to convince her, .......................... ?

      5.   We can’t leave him alone, .......................... ?

      6.   We’ve done our job, .......................... ?

      7.   You should apologize for what you have done, .......................... ?

      8.   They didn’t start at two o’clock, .......................... ?

      9.   They finish work at five o’clock, .......................... ?

      10. She doesn’t like him, .......................... ?

      11. I am your best friend, .......................... ?

      12. Let’s not stay here, .......................... ?

      13. Let’s do it, .......................... ?

      14. This is your jacket, .......................... ?

      15. There are some oranges in the basket, .......................... ?

      16. There isn’t any homework, .......................... ?

      17. Everybody is present, .......................... ?

      18. Nobody is perfect, .......................... ?

      19. Everything is perfect, .......................... ?

      20. Give me a hand, .......................... ?

Complete with tag question.