Well if you want to self check you have to know what are the keys to answer
Answer:
salt is very important to some people it can be used for various things
Explanation:
Answer:
This is an infinitive.
Explanation:
An infinitive is defined as "the basic form of a verb, without an inflection binding it to a particular subject or tense".
I think all of them are correct. Some of them were a bit confusing.