Every possible means been tried.and we find only this means can we do it well． A
来源：网络
时间：
推荐文章
Every possible means_____ been tried，and we find only______ this means can we do it well．
A．have, in B．have, by
C．has, in D．has, by
试题答案
D
| 其余几项均容易被误选。这里主要涉及名词means（方式，方法，手段）的用法与搭配：means 单复同形，every means意思是“每一个方法”故谓语动词应为单数；“通过某种方式”，介词用by固定搭配。故选项中只有D正确。 |