№12 постройте отрицательные и вопросительные предложения 1. john and richard have just gone away. 2. she has already answered jake's letter. 3. i have not seen him for three years. 4. i have been here three times before. 5. mike has already bought a new car. 6. jake hasn't come from the theater yet. 7. the film has just begun. 8. they haven't been here since 1997. 9. i've reserved a room in the hotel. 10. jake has shown the visitors his town.