• 1. (2019·天水) 指出这三个句子在一般情况下应该用什么语调。
  ①—What is success？

  ②—Does it mean that you are rich and famous？

  ③—I'm not sure how to answer it.

  A . ①升调②降调③降调 B . ①升调②升调③降调 C . ①降调②降调③降调 D . ①降调②升调③降调