practice 10th

https://www.ego4u.com/en/cram-up/grammar/adjectives-adverbs/adjectives/exercises

http://www.englishexercises.org/makeagame/viewgame.asp?id=6009

https://jeopardylabs.com/play/comparative-and-superlative-adjectives2

https://www.englishclub.com/grammar/prepositions-at-in-on-time.htm

https://www.englisch-hilfen.de/en/exercises/structures/prepositions_at_in_on_time.htm

https://www.ecenglish.com/learnenglish/seven-letters-game

https://www.ego4u.com/en/cram-up/grammar/future-1-going-to

https://elt.oup.com/student/solutions/elementary/grammar/grammar_09_012e?cc=co&selLanguage=en

http://www.englishexercises.org/makeagame/viewgame.asp?id=5640