Corrected Words:
- 1. a potato / some potatoes
- 2. some eggs / an egg
- 3. an apple / a banana
- 4. some milk / a sugar
- 5. some biscuits / a biscuit
- 6. a rice / some rice
- 7. an apple / a banana
- 8. some sugar / a sugar
Explanation: We use 'a' or 'an' for singular countable nouns and 'some' for plural countable nouns or uncountable nouns when referring to an indefinite quantity. 'Any' is typically used in negative sentences and questions.