Game: Any/Some/Countable Nouns

Here is a little game to practise any/some/a/an: https://elt.oup.com/student/result/engelem/c_games/game_03?cc=gb&selLanguage=en

Remember,
a/an = 1, so we can only use a/an with singular, countable nouns
we use any with negative sentences and questions
we use some with positive sentences

Are there any frogs in this picture? Yes, there are some frogs.

Are there any apples in this picture? Yes, there are some apples.

What is in the fridge?

Is there any milk in the fridge? No, there isn't any milk.
Is there any juice in the fridge? Yes, there is some juice.
Is there any cheese in the fridge? No, there isn't any cheese.
Are there any bottles in the fridge? Yes, there are some bottles.
Are there any apples in the fridge? No, there aren't any apples.