Form 6a. Adjectives and Adverbs. Joining sentences

For practicing Adjectives and Adverbs:
https://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adjective_adverb_on_ly.htm;
https://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adjective_adverb_on_ly2.htm;
https://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adjective_adverb.htm;
https://www.englisch-hilfen.de/en/exercises/adjectives_adverbs/adjective_adverb2.htm;
https://www.ego4u.com/en/cram-up/grammar/adjectives-adverbs/exercises;
https://www.myenglishpages.com/site_php_files/grammar-exercise-adjectives-adverbs.php;
https://www.perfect-english-grammar.com/adverbs-or-adjectives-exercise-1.html;
https://www.english-grammar.at/online_exercises/adjective_adverb/adjective_adverb_index.htm.
For practicing Joining sentences:
https://www.english-grammar.at/online_exercises/adjective_adverb/adjective_adverb_index.htm;
https://www.englishexercises.org/makeagame/viewgame.asp?id=1676;
https://www.bradleys-english-school.com/online/multiplechoice/conj.html;
http://learnenglishteens.britishcouncil.org/grammar/beginner-grammar/conjunctions-or-so-because-although.