Forms 8a, 8b. Relative clauses. Comparisons

 For practicing relative clauses:

https://www.perfect-english-grammar.com/relative-clauses-exercise-1.html;

https://www.perfect-english-grammar.com/relative-clauses-exercise-2.html;

https://www.perfect-english-grammar.com/relative-clauses-exercise-3.html;

http://www.focus.olsztyn.pl/en-relative-pronouns-exercises.html#.X334aD9xfDc;

https://www.eltbase.com/get_quiz.php?id=56.

For practicing comparisons:

https://speakspeak.com/english-grammar-exercises/intermediate/comparatives-and-superlatives;

https://www.esl-lounge.com/student/grammar/4g2-the-the-comparatives.php.