2. 专升本
  3. A series of attempts________, we came to a wonderful solution to the problem.

A series of attempts________, we came to a wonderful solution to the problem.

admin2018-03-30  46
问题 A series of attempts________, we came to a wonderful solution to the problem.
选项 A、had been made
B、were made
C、having made
D、having been made
答案D
解析 句意：经过一番努力，我们最终找到了解决这一问题的好方法。句中现在分词短语作状语，表示动作已经发生，因此用完成形式。例如：Having finished her work，she went home．她干完工作就回家了。题目中句子用的是现在分词的被动形式。
转载请注明原文地址:https://kaotiyun.com/show/XRWC777K
本试题收录于： 英语题库普高专升本分类
0

英语

普高专升本

相关试题推荐
随机试题
最新回复(0)