Решение:
'Few' используется с исчисляемыми существительными (которые можно посчитать), а 'little' — с неисчисляемыми (например, вода, время, сахар).
- There are few eggs left. I'll go buy some.
- I have too little time to finish this work.
- We've got few apples to make an apple pie.
- He drinks too little water.
- There is little olive oil in that bottle, we need more.
- I know very few people in my new town.
Ответ: few, little, few, little, little, few.