Add a or nothing the depending on whether nouns are countable

Add a or nothing the depending on whether nouns are countable or uncountable.
Would you like chocolate?
They're delicious.
Would you like -a- chocolate?
They're delicious.
1 Do you like chocolate?
2 That was terrible meal!
3 When he gives advice, you should listen carefully.
4 Mummy, can have ice cream? They're only 50p.
5 That's great news!
6 Let's go to caf for breakfast.
7 Do you have luggage to carry ?
8 That's useful information. Thanks for telling me.
9 l live in village in Santa Catarina.
10 He spends money very quickly!