Ответ:

2) Many.

3) Much.

4) Many.

5) Many

6) Much

7) Much.

8) Many

Объяснение:

1) Many употребляется только с исчисляемыми существительными во множественном числе:

There are many children in the park.

There are many expensive cars in front of that house.

There are three bottles of milk in the fridge.

2) Much употребляется только с неисчисляемыми существительными:

There is much salt in the soup.

There is much orange juice on the floor.