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
网友回答
C解析这题考查needn’t have done“本不必做某事却做了”，句意是：天气很好，你本不必费事带个雨衣。should have taken done“本应该做却没做”could have done“本可以做却没做”，must表过去的推测只能用于肯定句中，所以选C。