A series of measures______(已经被采用)to prevent air pollution.

admin2010-05-26 14

问题 A series of measures______(已经被采用)to prevent air pollution.

选项

答案has been taken / adopted

解析本题要注意主谓一致。“a series of+名词”谓语用单数，“a number of+名词”谓语为复数，“the number of+名词”谓语为单数。

转载请注明原文地址:https://jikaoti.com/ti/eOLFFFFM

大学英语四级

相关试题推荐

随机试题

最新回复(0)