You can easily discuss familiar things, including the past, present and future, understand movies and TV, and write emails or letters that conform to grammatical structures.

(ef) English abbreviation for EF Education. The full name of EF Education is "EF Education". EF EF Education is a private enterprise, with 16 subsidiaries and non-profit organizations, providing various educational courses, including language learning, studying abroad, degree courses and cultural exchange. EF EF Education's mission is to "break down the barriers caused by language, culture and geographical location".