What’s the _________ of having a public open space where you can’t eat, drink or even simply hang out for a while? 

Several new railways are under _____ in China .

According to a UN report，one third of the world population have no _________ to clean drinking water and health care.

The rocks are very big with _____ of colors on them.

Desipt the fact that there was a big ______ over the meeting, it seemed that a good many of the invited guests would still attend it.