The sentence that shows the proper way to use a colon is: Van Gogh painted my two favorite pieces: Starry Night and Sunflowers. The punctuation mark, colon (:) is generally used when introducing a list. But a certain rule is applied when using this punctuation mark. It should not be used if it is directly followed by a verb or preposition.
Answer:
1. it's not man's it's men
2. it's not aunt's it's aunt
3. it's not waters it's water
4. it's not days it's day
5. it's not parent it's parents
