For exam practice

https://www.examenglish.com/cambridge_esol.php

https://www.englishaula.com/en/english-exam-preparation/

https://www.flo-joe.co.uk

Look for

- (key word) sentence transformations

- word building

- reading practice

- listening practice

T1 = B1 (ie Cambridge PET/ Preliminary)

T2 = B2 (ie. Cambridge FCE/ First)

For grammar practice

https://www.perfect-english-grammar.com

https://elt.oup.com/student/solutions/upperint3rdedition/grammar/?cc=it&selLanguage=it

http://www.english-grammar.at/online_exercises/word-formation/word-formation-index.htm

http://www.bbc.co.uk/learningenglish/

https://www.esl-lounge.com