1. we use a/an when we're talking about one object
we use some when the sentence is affirmative and we're talking about more objects
we use any when the sentence is negative or interogative
2. coffee- u burger- c lemon- c
water- u meat- u strawberry - c
rice- u carrot- c salt - u
3. 1) any
2)any
3)a
4)some
5)an
6) some