Complete the sentences with active or passive form of the verbs in the correct tense

1. Modern big cities are growing bigger, so many residential buildings
   [ ]!
2. Hopefully, new areas
   [ ] not only from stone and glass, but will also have green territories.
3. New districts are often colourful and
   [ ] kids' toys.
4. The city
   [ ] diversity in architecture, but tries to compensate it with colours.
5. Recently, a lot of changes
   [ ] in city design.
6. Designers
   [ ] it hard to create new solutions as so many unusual things
   [ ] in architecture.
7. Urban planning
   [ ] complicated. A lot of things should
   [ ].