All possible means________to prevent air pollution, but it doesn’t seem to make much difference.

admin2022-10-23  12

问题 All possible means________to prevent air pollution, but it doesn’t seem to make much difference.

选项 A、have used
B、has used
C、has been used
D、have been used

答案D

解析 means作“方法,手段,工具”讲时,单复数同形,作主语时,若其前面有each,every,either,neither等表示单数概念的定语修饰,谓语动词应用单数形式;若其前面有all,both,these等表示复数概念的定语修饰,谓语动词应用复数形式。根据空前的All possible means可知,前一分句的谓语动词应用复数形式,所以可排除B、C两项。根据句意可知,use(使用)和All possible means之间是逻辑上的动宾关系,所以应用被动语态。故选D。
转载请注明原文地址:https://jikaoti.com/ti/J16iFFFM
本试题收录于: 英语题库普高专升本分类
0

最新回复(0)