The word "running" is an appropriate word to fill in the blank in the sentence.
We can arrive at this answer as follows:
For a word to be added to the above sentence, you must first assess the context of the sentence.
In this context, we can see that something related to the water supply makes the countryside something inconvenient.
Furthermore, we know that this situation does not exist in the city, which makes the urban environment have advantages over rural life.
We can also notice that the missing word in the sentence starts with the letter "r" and ends with the letter "g".
All this, allows us to conclude that the word "running" is the word that is missing in the sentence. This can be seen because when this word is added, the sentence remains consistent and with a clear and understandable context.
