Forms 7a, 7b. Present Perfect vs Past Simple

For practicing Present Perfect:
https://www.englisch-hilfen.de/en/exercises/tenses/present_perfect_statements2.htm;
https://www.englisch-hilfen.de/en/exercises/tenses/present_perfect_statements.htm;
https://www.ego4u.com/en/cram-up/grammar/present-perfect-simple/exercises;
https://www.perfect-english-grammar.com/present-perfect-exercises.html.
For practicing Present Perfect vs Past Simple:
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_present_perfect.htm;
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_present_perfect3.htm;
https://www.perfect-english-grammar.com/past-simple-present-perfect-4.html;
https://www.english-4u.de/en/tenses-exercises/perfect-past-simple.htm;
https://www.ego4u.com/en/cram-up/grammar/simpas-preper.
For practicing irregular verb forms:
https://www.perfect-english-grammar.com/irregular-verbs-exercise-1.html;
https://www.perfect-english-grammar.com/irregular-verbs-exercise-2.html;
https://www.perfect-english-grammar.com/irregular-verbs-exercise-3.html;
https://www.perfect-english-grammar.com/irregular-verbs-exercise-4.html;
QUIZ:
https://www.proprofs.com/quiz-school/story.php?title=past-simple-present-perfect.

QUIZ for the students of Form 7a:
Alina, Paulius, Toma, Kristian - 1 stulpelis (16 sakinių)
Deividas, Melisa, Marijus - 2 stulpelis (16 sakinių)
Augustas, Martynas, Gabija - 3 stulpelis (16 sakinių)
Melita, Juventa, Kornelijus - 4 stulpelis (16 sakinių)
https://www.englishexercises.org/makeagame/viewgame.asp?id=3494