For practicing:
PRESENT SIMPLE
https://www.englisch-hilfen.de/en/exercises/tenses/simple_present_statements.htm;
https://www.englisch-hilfen.de/en/exercises/tenses/simple_present_negation_long.htm;
https://www.englisch-hilfen.de/en/exercises/tenses/questions_answers_simple_present.htm;
https://www.englisch-hilfen.de/en/exercises/tenses/simple_present_mix.htm;
https://www.english-4u.de/en/grammar/present-simple.htm;
https://learnenglish.britishcouncil.org/grammar/english-grammar-reference/present-simple;
ADVERBS OF FREQUENCY
https://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adverbs_of_frequency.htm;
https://www.myenglishpages.com/english/grammar-exercise-adverbs-frequency.php;
https://elt.oup.com/student/solutions/elementary/grammar/grammar_02_012e?cc=lt&selLanguage=en;
LIKE/LOVE/HATE + V-ing
https://www.englishexercises.org/makeagame/viewgame.asp?id=13220
QUIZ: