ГДЗ граматика Англійська мова 7 клас Мітчелл

Rewrite the sentences using the Passive Voice, as in the example. 

1. This resort is visited, by lots of tourists every summer. 2. A hiking tour in Scotland was organised last year. 3. Are trees being planted by students in the park? 4. Dinner was being prepared by Nora when her sister called. 5. Vegetables aren’t grown in his garden. 6. Was her car repaired a month ago?