Not every student is aware of _________ of the English language.
Correct answer: GET
Knowledge: Kind words
After the preposition “of” needs a noun or noun phrase.
its importance: its importance
the importance: importance
important (adj): important
an importance => does not exist because “importance” is an uncountable noun
Not every student is aware of the importance of the English language.
=> Not all students are aware of the importance of English.
The answer to choose is: GET