Free site with English language practice exercises and answers for Cambridge, TOEFL and other exams

The first link is to C1 level, but explore the site:

https://www.examenglish.com/CAE/cae_reading_use_of_english.html

https://www.examenglish.com/grammar/index.html

https://www.examenglish.com/vocabulary/academic_wordlist.html

https://www.examenglish.com/TOEFL/index.php