ARIADNE’S THREAD IN IDIOM ACQUISITION IN MOTHER- TONGUE AND FOREIGN LANGUAGE CLASSROOMS – QUANTITATIVE DATA ANALYSIS (THE FIRST PART OF THE STUDY). FS [Internet]. 2019 Oct. 10 [cited 2025 Oct. 11];17(1):292-304. Available from: http://www.philologicalstudies.org/index.php/philologicalstudies/article/view/231