The weather turned out to be fine .I _____the trouble to carry my umbrella with me.
问题描述：
The weather turned out to be fine .I _____the trouble to carry my umbrella with me.
a needn't have taken b wouldn't have taken c won't have taken d couldn't have taken
答
a.needn't have taken (过去）不必要带伞（但实际是带了,多余）但是答案是c100%地确定，你的所谓的答案是错误的。想想看，前面是turned out. 不是turns out,怎么可能是won't have taken?根据上下文，第一个排除的就是C.其他的选项皆有可能，都是表示“过去的”，只是语义不同。