"A mood of pessimism", it writes, has displaced "the idea of inevitable progress born in the scientific and industrial revolutions". Except those words are from an article. 请问这里except 为什么可以单独成句?前面为什么是句号?
如题—How _______ you speak to your class teacher like that?—Because he didn't treat us alike. I think it is unfair.A. may B. dare C. should D. might答案:D 这是might 是什么用法呢?为什么B不行呢?