One of the most important questions they had to consider was _________ of public health.

I wanted some more cold meat but there was _____ left.

Health experts believe that even a little exercise is far better than _____at all. 

People think that the beauty of the mountains is great than ___________ of the desert.

Low-carbon life is of great benefit to improve the world environment. _____ can be enjoyed from it until you have a deep understanding of it, though.