Grammar
https://www.nyelvvizsgak.hu/test/angol/angol_kf_teszt_ifo.pdf
https://www.eslgo.com/classes/travel/
https://www.edufind.com/english/grammar/grammar_topics.php
https://www.langschool.eu/textbook/intermediate-en/unit05.en.html
Books:
https://kit.hu/konyvoldal.php?azon=40
https://www.scribd.com/doc/129082277/Tourism-in-Focus-Ketex-Fekeshazi-Marta-Mathe-Krisztina
Although, in spite of:
https://www.myenglishpages.com/site_php_files/grammar-exercise-although.php#.UqoBeCclta8
Passive:
https://learnenglish.britishcouncil.org/en/comment/53490
