问题
选择题
We ________ jump to conclusions before we have all the facts.
A．couldn't
B．mightn't
C．shouldn't
D．mustn't
答案
答案：C
C 考查情态动词。句意：我们不应该在掌握全部事实前草率下结论。shouldn't“不应该”；couldn't“不能”；mightn't“可能不”；mustn't“禁止”。根据句意可知应选C项。