Выберите: how many /how much sugar are there in the packet? how many/ how much eggs are there in the fridge? how many /how much apples are there in the basket ? how many/ how much milk are there in the fridge? how many /how much bread are there in the cupboard? how many/ how much orange juice are there in the glass ? how many how much /my mayonnaise are there in the jar?
How many eggs...?
How many apples ...?
How much milk?
How much bread...?
How much orange juice...?
How much mayonnaise...?
Much используется с неисчисляемыми, а many с исчисляемыми предметами. На заметку: слово Fish(рыба) будет неисчисляемым в английском языке.