2. 外语
  3. A professor reported that he____________(已发现一种新方法帮助老人) improve their memories.

A professor reported that he____________(已发现一种新方法帮助老人) improve their memories.

admin2010-07-24  52
问题 A professor reported that he____________(已发现一种新方法帮助老人) improve their memories.
选项
答案A professor reported that he had discovered a method to help the old improve their memories．
解析 因discovered发生在reported之前，所以在report引导的宾语从句中谓语动词需用过去完成时态，即had discovered表达。
转载请注明原文地址:https://kaotiyun.com/show/QON7777K
0

大学英语四级

相关试题推荐
随机试题
最新回复(0)