This is your essay on smart cities by 2050, ____? A. is this B. isn't this C. is it D. isn't it
D. isn't it
Copenhagen has been voted the most ____ city in the world several times. A. ecological friendly B. ecologically soundly C. eco-friendly D. friendly ecologically
C. eco-friendly
Across the globe, nations are preparing for water scarcity, ____? A. are they B. aren't they C. will they D. won't they
B. aren't they
Unlock this slideshow and over 4 million more with Baamboozle+