11. Заполните пропуски предлогами: 1. People's Parks are universally provided ... the continent. 2. The secondary business avenues should have sidewalks ... a minimum width ... 10 feet. 3. All sewer, water, electric and other mains are made ... underground conduits. 4. A city is attractive ... its beauty. 5. ... planning the future growth ... existing and new cities one can avoid the enormous expense occasioned ... the lack ... planning.