Difficulty: Easy
Correct Answer: are not aware of
Explanation:
Concept
Beware is a verb (e.g., “Beware of dogs”), not an adjective. The correct adjective is aware, and it takes the preposition of: “aware of (the facts)”.
Option analysis
are not aware of — correct adjective and preposition. ✅are not aware for — wrong preposition.are not to be aware, must not to be aware for — unidiomatic/grammatically incorrect.
Final Answer
They are not aware of all the facts.
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