SATISFACTORY LEVEL:
https://test-english.com/grammar-points/a1/present-simple/;
BASIC LEVEL:
https://test-english.com/grammar-points/a1/present-simple/2/;
UPPER LEVEL:
https://test-english.com/grammar-points/a1/present-simple/4/.
For practicing REPORTED STATEMENTS:
https://www.englisch-hilfen.de/en/exercises/reported_speech/statements.htm;
https://www.englisch-hilfen.de/en/exercises/reported_speech/statements2.htm;
https://www.englisch-hilfen.de/en/exercises/reported_speech/sentences.htm;
https://www.perfect-english-grammar.com/reported-speech-exercise-12.html;
https://www.ego4u.com/en/cram-up/grammar/reported-speech/exercises?05;
For practicing REPORTED QUESTIONS:
https://www.englisch-hilfen.de/en/exercises/reported_speech/questions.htm;
https://www.englisch-hilfen.de/en/exercises/reported_speech/questions2.htm;
For practicing COMMANDS - affirmative sentences:
https://www.englisch-hilfen.de/en/exercises/reported_speech/commands.htm;
For practicing COMMANDS - negations:
https://www.englisch-hilfen.de/en/exercises/reported_speech/commands_negations.htm;
MIXED EXERCISES:
https://www.ego4u.com/en/cram-up/grammar/reported-speech/exercises?10;
https://www.perfect-english-grammar.com/reported-speech-exercise-4.html;
https://www.perfect-english-grammar.com/reported-speech-exercise-5.html;
https://www.english-grammar.at/online_exercises/reported-speech/reported-speech1.htm;
QUIZ:
Upper level
Basic level
https://test-english.com/grammar-points/b1/reported-speech-indirect-speech/2/
Satisfactory level
For practicing:
STATIVE VERBS
https://www.perfect-english-grammar.com/stative-verbs-exercise.html;
https://usefulenglish.ru/grammar/tenses-exercise-four;
https://www.englishgrammar.org/state-verbs-exercise/;
RELATIVE CLAUSES: DEFINING AND NON-DEFINING
https://www.ego4u.com/en/cram-up/grammar/relative-clauses;
https://www.ego4u.com/en/cram-up/grammar/relative-clauses/exercises?04;
https://test-english.com/grammar-points/b2/relative-clauses/;
https://www.englishrevealed.co.uk/FCE/fce_grammar/relative_clauses_defining_and_non_defining.php.
QUIZ:
SATISFACTORY LEVEL
For practicing:
WAS/WERE; HAD; COULD
https://www.englisch-hilfen.de/en/exercises/tenses/was_were.htm;
https://www.english-4u.de/en/tenses-exercises/was-were.htm;
https://agendaweb.org/verbs/to-have-past-exercises.html;
https://www.engblocks.com/grammar/exercises/modal-verbs/can-cant-could-couldnt/?utm_content=cmp-true;
https://www.perfect-english-grammar.com/modal-verbs-of-ability-exercise-1.html;
https://www.englisch-hilfen.de/en/exercises/tenses/be_have_simple_present_simple_past.htm;
PAST SIMPLE. REGULAR VERBS
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_ed3.htm;
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_ed.htm;
https://www.englisch-hilfen.de/en/exercises/tenses/simple_past_statements.htm;
https://www.adelescorner.org/grammar/past_tense/past_regular.html;
https://www.englisch-hilfen.de/en/exercises/tenses/questions_answers_simple_past.htm;