PRESENT PERFECT

 https://www.curso-ingles.com/practicar/ejercicios/present-perfect

https://www.ejerciciosinglesonline.com/exercises-and-theory/grammar-exercises-and-theory/present-perfect-simple/

https://www.superprof.es/apuntes/idiomas/ingles/gramatica-inglesa/verb-tense/exercises-present-perfect-simple-v.html

https://www.superprof.es/apuntes/idiomas/ingles/gramatica-inglesa/verb-tense/exercises-simple-present-and-present-perfect.html

https://www.curso-ingles.com/practicar/ejercicios/present-perfect-vs-past-simple

https://www.curso-ingles.com/practicar/ejercicios/present-perfect-vs-past-simple-2

https://www.ejerciciosinglesonline.com/exercises-and-theory/ex6-present-perfect-vs-past-simple/

https://english.lingolia.com/es/gramatica/tiempos-comparacion/simple-past-present-perfect-simple/ejercicios