Revision activities:
Grammar
https://agendaweb.org/exercises/verbs/conditional/first-conditional-1
https://agendaweb.org/exercises/verbs/conditional/first-negative-questions
https://agendaweb.org/exercises/verbs/conditional/first-conditional-write-2
https://www.englisch-hilfen.de/en/exercises/if_clauses/type_1_mix3.htm
http://www.focus.olsztyn.pl/en-english-grammar-time-clauses-exercises.html#.YED_rFVKjcs
http://www.focus.olsztyn.pl/en-exercises-time-clauses-test-2.html#.YED_yFVKjcs
https://www.perfect-english-grammar.com/first-conditional-exercise-1.html
Listening
https://learnenglishteens.britishcouncil.org/skills/listening/intermediate-b1-listening/advice-exams
Reading
https://continuingstudies.uvic.ca/elc/studyzone/490/reading/stress3-reading
https://ngllife.com/long-and-healthy-life
Information about education in the UK
https://www.internationalstudent.com/study_uk/education_system/