19.這學生酷愛閱讀，日以繼夜地讀。 (A) The student was a voracious reader, spending much of his days and evenings devouring books. (B) The student was a voracious reader, and paid no attention to meals and rest when he was reading. (C) If the student finds a book he is interested in, he will read it continuously with no hesitation. (D) Once the student starts reading books, he keeps it days and nights without having any breaks.