1. My dad (play / guitar) . Can you hear? 2. Maria (not / know / I) . We have never met. 3. Is this dictionary (good) than that one? 4. I (have to / do) my homework before I went out with my friends. 5. They (not / be) at home since Christmas last year. 6. (There / be) a lot of people at the party last night? 7. What (your parents / do) when they are at home in the afternoon? 8. Helen (not / talk) to her sister now. 9. My room (be / small) than ours, isn’t it? 10. We (not / study) Maths when the teacher walked into the classroom.