Choose the correct options

There is [ ] computer in my room.

1. Look! I have got
   [a|an]
   elephant and
   [a|an] cat.
2. There is
   [a|an] bike in my room.
3. I like to eat
   [a|an] egg and
   [a|an] banana for breakfast.
4. My sister has got
   [a|an] doll.
5. My brother has got
   [a|an] aeroplane.