15. B
16. B
17. C
18. C

15. What is Danny's main hobby?
B) Collecting tropical fish
The text clearly states that Danny's main hobby is collecting tropical fish.
16. At what age did Danny start collecting fish?
B) Four
The text says, "He has collected fish since he was four."
17. What was Danny's first fish?
C) Angelfish
The text states, "His first fish was an Angelfish."
18. Why does Danny find it difficult to keep sharks in his aquarium?
C) It's challenging to maintain an aquarium for sharks in England