◎ 题干
The bridge is so important to the people here that once ________ it must be carried out without delay.
A.designsB.having designedC.designingD.designed
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“The bridge is so important to the people here that once ________ it must be carried out without delay.A.designsB.having designedC.designingD.designed…”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。