PRESENT PERFECT AND PRESENT PERFECT CONTINUOUS EXERCISES

https://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/exercises
https://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/exercises?ex04
https://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/exercises?ex06
https://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/tests?test1
http://www.englishgrammarsecrets.com/presentperfectsimpleorcontinuous/exercise4.html