【题目】The weather turned out to be fine yesterday. You ________the trouble to carry your raincoat with you.
A．should have taken B．could have taken
C．needn’t have taken D．mustn’t have taken
在线课程【答案】C
【解析】
试题分析：考查情态动词。句意：昨天天气很好，你本不必带着你的雨伞的。虚拟语气，本来不必要做某事但是却做了，故选C项。