Exercise 3. complete the questions with in, on or at. 1. do you sometimes watch tv the mornings? 2. are you usually at home 7 o'clock the evenings? 3. do you sometimes work ? 4. what do you usually do weekends? 5. do you usually go shopping saturdays? 6. do you go skiing the winter? 7. do you have a holiday december? 8. is there a holiday in your country 6, january?