Form 7b. Present Perfect. Past Simple

For practicing Present Perfect:

https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?04;

https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises?05;

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

https://www.ego4u.com/en/cram-up/tests/present-perfect-simple-1.

For practicing Past Simple:

http://www.perfect-english-grammar.com/past-simple-exercise-7.html;
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_mix.htm.

Past Simple or Present Perfect?
https://www.ego4u.com/en/cram-up/grammar/simpas-preper/exercises?ex04;
https://www.ego4u.com/en/cram-up/grammar/simpas-preper/exercises?ex05;
https://www.ego4u.com/en/cram-up/grammar/simpas-preper/exercises?ex06.