Return all the English phrases in the Anki translation flashcards 

    >>> len(get_anki_phrases_english(limit=100)) > 700
    True

def get_anki_phrases_english(limit=None):
    """ Return all the English phrases in the Anki translation flashcards 

    >>> len(get_anki_phrases_english(limit=100)) > 700
    True
    """
    texts = set()
    for lang in ANKI_LANGUAGES:
        df = get_data(lang)
        phrases = df.eng.str.strip().values
        texts = texts.union(set(phrases))
        if limit and len(texts) >= limit:
            break
    return sorted(texts)