Present Perfect Simple

 Online exercises

https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises

have/has 

https://agendaweb.org/exercises/verbs/present-perfect-multiple

https://www.englisch-hilfen.de/en/exercises/tenses/present_perfect_statements2.htm

negative

Articles and quantifiers a lot of, lots of, a few, little, much, many

 

 

 https://www.grammar.cl/Notes/Much_Many_Lot_Few.htm

https://www.grammar.cl/Games/Much_Many_Lot_Few.htm

https://agendaweb.org/exercises/grammar/indefinite/any-some-2

https://www.englisch-hilfen.de/en/exercises/confusing_words/some_any.htm

https://www.montsemorales.com/gramatica/Muchbuild3-1.htm