Form 7a. Present Simple vs Present Continuous. Adverbs of frequency

For practicing:
https://www.perfect-english-grammar.com/present-simple-exercise-7.html;
https://www.perfect-english-grammar.com/present-continuous-exercise-1.html;
https://www.englisch-hilfen.de/en/exercises/tenses/simple_present_progressive2.htm;
https://www.perfect-english-grammar.com/present-simple-present-continuous-1.html;
https://www.english-4u.de/en/tenses-exercises/present-simple-progressive2.htm;
https://www.myenglishpages.com/site_php_files/grammar-exercise-adverbs-frequency.php;
https://elt.oup.com/student/solutions/elementary/grammar/grammar_02_012e?cc=lt&selLanguage=en.
QUIZ:
https://www.proprofs.com/quiz-school/story.php?title=present-simple-vs-continuous.

Form 5ac. Verb 'to be'. Pronouns. Plurals

For practicing:
https://www.englisch-hilfen.de/en/exercises/tenses/be3.htm;
http://www.eclecticenglish.com/grammar/PresentSimpleToBe1A.html;
https://www.englishexercises.org/makeagame/viewgame.asp?id=2813;
https://www.myenglishpages.com/site_php_files/grammar-exercise-be-present.php;
https://www.englisch-hilfen.de/en/exercises/pronouns/personal_pronouns.htm;
https://www.englisch-hilfen.de/en/exercises/pronouns/mix.htm;
https://www.ego4u.com/en/cram-up/grammar/pronouns/exercises?02;
https://www.ego4u.com/en/cram-up/grammar/pronouns/exercises?03;
https://www.englisch-hilfen.de/en/exercises/nouns_articles/plural6.htm;
https://www.englisch-hilfen.de/en/exercises/nouns_articles/plural7.htm.
QUIZ:
https://www.proprofs.com/quiz-school/story.php?title=njy0mdk4j4vw;
https://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-80258.php;
https://www.proprofs.com/quiz-school/story.php?title=plural-noun-test.

Form 7b. Past Simple. Used to

For practicing:
https://www.english-4u.de/en/grammar/past-simple.htm;
https://www.perfect-english-grammar.com/past-simple-exercise-8.html;
http://www.esl-lounge.com/student/grammar/3g80-intermediate-past-simple-or-used-to-gap-fill-exercise.php;
https://www.perfect-english-grammar.com/used-to-exercise-2.html.
QUIZ:
https://www.englishclub.com/grammar/verb-tenses_past_quiz.htm;
https://www.proprofs.com/quiz-school/story.php?title=used-to-past-simple.

Forms 8a, 8c1, 8c2. Present Perfect vs Present Perfect Continuous. Past Simple vs Present Perfect

For practicing:
https://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro;
https://www.englisch-hilfen.de/en/exercises/tenses/present_perfect_or_progressive.htm;
https://www.perfect-english-grammar.com/present-perfect-present-perfect-continuous-1.html.
For practicing:
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_present_perfect.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.
QUIZ:
http://esl.fis.edu/grammar/multi/ppsppc.htm;
https://www.proprofs.com/quiz-school/story.php?title=past-simple-present-perfect.