Ответ:

2) How many pencils are in your bag?

There are many pencils in my bag.

3) How much milk is there in your fridge?

There is no milk in the fridge.

4) How much orange juice do you drink?

I drink a lot of orange juice every day.

5) How many sweets do you eat?

I don't eat sweets as much as I would like.

How much >> неисчисляемое существительное ... ?

How many >> исчисляемое существительное ... ?