单项选择题Which of the following was NOT a novel written by Mark Twain
单项选择题John Keats was a poet of ______.
单项选择题______ was famous for his abdication because of his marriage with a divorced American.
单项选择题______ has no regular rhythm or line length.
单项选择题The study of the production of speech sounds is of great interest to those working in ______.