Write the appropriate word or phrase in the blank. Definition: if a place is square or if the air there is square , there is no pollution there and it is healthy Part of Speech: Adjective Examples: At last the air in the city is __ These are the __ beaches in England. If the rivers are __ , there will be lots of fish in them.

## Step 1<br />The first step is to understand the context of the problem. The problem is a fill-in-the-blank type where we need to find the appropriate word or phrase that fits the definition, part of speech, and examples provided.<br /><br />## Step 2<br />The definition given is "if a place is __ or if the air there is __, there is no pollution there and it is healthy". This suggests that the words we are looking for should describe a place or air that is free from pollution and healthy.<br /><br />## Step 3<br />The part of speech is specified as an adjective. This means that the words we are looking for should be adjectives.<br /><br />## Step 4<br />The examples provided are "At last the air in the city is __", "These are the __ beaches in England", and "If the rivers are __, there will be lots of fish in them". These examples suggest that the words we are looking for should be able to fit in these sentences and make sense.<br /><br />## Step 5<br />By analyzing the context, part of speech, and examples, we can conclude that the words that fit the blanks are "clean" and "fresh".