Помогите пожалуйста вставить much, many, little, few, a little или a few.

Можно и так
1. When we walked a little farther down the road, we met another group of students. - когда мы прошли немного дальше
2. Have you got much (a little of) ink in your pen? = у тебя много чернил в ручке? или немного чернил есть? но я бы сказал some ink, "a little ink" как-то странно
3. At the conference we met a few people whom we knew well. = встретили много знакомых
4. There are very few old houses left in our street. = мало домов осталось
5. There is a little of salad left in this bowl. = осталось немного салата (без of тоже странновато - беру слова назад, нормально и без "of")
6. Robert wrote so many letters that he is never going to write a letter again.
7. She ate so much ice cream that she is going to have a sore throat.

1. When we walked much farther down the road, we met another group of students.
2. Have you got a little… ink in your pen?
3. At the conference we met a few… people whom we knew well.
4. There are very few… old houses left in our street.
5. There is a little… salad left in this bowl.
6. Robert wrote so many… letters that he is never going to write a letter again.
7. She ate so much… ice cream that she is going to have a sore throat.