Complete the spooky (but mostly silly) story about a friendly ghost. Choose the correct word to complete the sentence.

Barnaby is the worst ghost in the entire haunted house because he is afraid of _____ people!

The correct answer is scaring.

Prepositions like "of" are followed by a noun or a gerund (a verb ending in "-ing" that acts like a noun). Therefore, "afraid of scaring" is grammatically correct.