English 4th - English homework Friday 10th

This is homework! You have to do it for Monday:

a) Fill in the gaps using "a" or "an":
1. _________ umbrella           2. __________ house
3.  _________ hour                 4. ___________ uniform
5. __________ helipcopter     6. ___________ lemon
7. __________ apple              8. ___________ cat
9. __________ elephant         10. __________ egg
11. _________ orange            12. __________ window
13. _________ octopus           14. _________ pencil
15. _________ spoon              16. _________  star

b) Say whether these nouns are countable or uncountable:

Egg - rabbit - water - time - coin - money - suitcase - luggage
Window - milk - umbrella - orange - orange juice - spoon - cheese - salt - rice - apple - banana - carrot - oil - chocolate - star