Current is the adjective, it describes books in the sentence.
Answer:
Adverb
Explanation:
It is an adverb because it modifies the adjective after it (very).
Answer:
aqua: aquarium,paraquat,aquatint
cycl: cyclist,unicycle,motorcycle
uni:reunion,reunite,unit
Explanation: you can say anything as long as it has the word in it
Inddonesian hope this helps