> A1-A2 exercises - a, an: 1, 2, 3
> A1-A2 exercises - a, an, the: 1, 2
> B1-B2 exercises: 1, 2, 3, 4, 5
> A1-A2 exercises - some, any: 1, 2
> A1-A2 exercises - a, an, some, any: 1, 2
> A1-A2 exercises - much, many, a lot of: 1, 2
> A1 exercises: 1
> B2 exercises - quantifiers: 1, 2
> B1 exercises: 1
> B2 exercises: 1