These worksheets can be used as a speaking activity. Students work in pairs and take turns in asking the questions. It's good if you as a teacher to circulate and monitor their work. At the end, highlight any mistakes that you heard. The two blank cicrcles should be filled in with students' own questions to ask each other. The second worsheet is more challenging as it requires more grammar knowledge. The worksheet is constructed for elementary or pre-intermediate learners but it should be easy to adapt to any level you wish. Just feel free to change the questions or the key words according to your needs.