19.It takes a ___________ amount of time and energy to achieve proficiency in a foreign language.
举一反三
- Which one is not the standard for foreign language proficiency in America
- What are the Five C’s of the Standards for foreign language proficiency in America?
- ________, Malcolm X managed to achieve English language proficiency through self- learning while in prison.
- Achieving a high degree of proficiency in English as a foreign language is not a mysterious _____ without scientific basis.
- Robin thought that the best ________ to learning a foreign language is the study of the spoken language.