Решение:
- The task was very difficult, only a few students could complete it. (Students — исчисляемое существительное).
- There aren't many students on the sports ground. (Students — исчисляемое существительное).
- Only a few people can speak this language. (People — исчисляемое существительное).
- Do you have much snow in December? (Snow — неисчисляемое существительное).
- How many museums are there in the city? (Museums — исчисляемое существительное).
- Could I ask you a few questions? (Questions — исчисляемое существительное).
Ответ: 1. a few, 2. many, 3. a few, 4. much, 5. many, 6. a few.