2 exercises: Complete the questions using the correct form of to be (am, are or is) then write answers to the questions. This exercise is for a Dutch student [adult] so some questions might need to be changed to suit age/nationality.
I, and my students, loved PhilipR's brilliant 13 questions worksheets:http://en.islcollective.com/worksheets/worksheet_page?id=19573. I got the idea for these worksheets from the 13 questions exercises but all questions are my own. We usually discuss the answers together or in a group and do the writing exercise for homework. This helps reinforce what we have covered in the lesson.