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

admin2008-11-26 47

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/zvfK777K

浙江省大学英语三级

相关试题推荐

随机试题

最新回复(0)